Document And Entity Information

Document And Entity Information	3 Months Ended
Document And Entity Information	Apr. 05, 2015	May 01, 2015
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Apr. 05, 2015
Document Fiscal Period Focus	Q1
Document Fiscal Year Focus	2015
Entity Registrant Name	NATIONAL PRESTO INDUSTRIES INC
Entity Central Index Key	0000080172
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		6,928,871
Entity Current Reporting Status	Yes

Condensed Consolidated Balance Sheets

Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Apr. 05, 2015	Dec. 31, 2014
CURRENT ASSETS:
Cash and cash equivalents	$ 49,356	$ 54,043
Marketable securities	20,593	22,404
Accounts receivable, net	51,346	68,752
Inventories:
Finished goods	30,686	30,308
Work in process	54,055	50,569
Raw materials and supplies	8,488	8,181
Total inventory	93,229	89,058
Deferred tax assets	6,623	6,623
Income tax receivable		1,668
Other current assets	23,058	14,321
Total current assets	244,205	256,869
PROPERTY, PLANT AND EQUIPMENT:
PROPERTY, PLANT AND EQUIPMENT	172,735	171,264
Less allowance for depreciation and amortization	78,124	75,721
PROPERTY, PLANT AND EQUIPMENT, NET	94,611	95,543
GOODWILL	11,485	11,485
INTANGIBLE ASSETS, net	8,250	10,644
NOTE RECEIVABLE	3,850	3,818
Total assets	362,401	378,359
CURRENT LIABILITIES:
Accounts payable	33,426	32,948
Federal and state income taxes	4,590
Accrued liabilities	13,998	15,680
Total current liabilities	52,014	48,628
DEFERRED INCOME TAXES	4,292	4,288
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS' EQUITY
Common stock, $1 par value: Authorized: 12,000,000 shares; Issued: 7,440,518 shares	7,441	7,441
Paid-in capital	6,195	5,906
Retained earnings	308,412	328,417
Accumulated other comprehensive income (loss)	4	(3)
Stockholders' Equity before Treasury Stock	322,052	341,761
Treasury stock, at cost	15,957	16,318
Total stockholders' equity	306,095	325,443
Total liabilities and stockholders' equity	$ 362,401	$ 378,359

Condensed Consolidated Balance Sheets (Parenthetical)

Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Apr. 05, 2015	Dec. 31, 2014
Condensed Consolidated Balance Sheets [Abstract]
Common stock, par value	$ 1	$ 1
Common stock, shares authorized	12,000,000	12,000,000
Common stock, shares issued	7,440,518	7,440,518

Consolidated Statements Of Comprehensive Income

Consolidated Statements Of Comprehensive Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Apr. 05, 2015	Mar. 30, 2014
Consolidated Statements Of Comprehensive Income [Abstract]
Net sales	$ 100,999	$ 86,554
Cost of sales	80,120	70,834
Gross profit	20,879	15,720
Selling and general expenses	6,161	6,295
Intangibles amortization	2,394	2,443
Operating profit	12,324	6,982
Other income	75	164
Earnings before provision for income taxes	12,399	7,146
Provision for income taxes	4,290	2,456
Net earnings	8,109	4,690
Weighted average common shares outstanding:
Basic and diluted	6,943	6,921
Net earnings per share:
Basic and diluted	$ 1.17	$ 0.68
Other comprehensive income, net of tax:
Unrealized gain on available-for-sale securities	7	4
Comprehensive income	$ 8,116	$ 4,694
Cash dividends declared and paid per common share	$ 4.05	$ 5.05

Consolidated Statements Of Cash Flows

Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 05, 2015	Mar. 30, 2014
Cash flows from operating activities:
Net earnings	$ 8,109	$ 4,690
Adjustments to reconcile net earnings to net cash provided by operating activities, net of acquisition related assets:
Provision for depreciation	2,485	2,337
Intangibles amortization	2,394	2,443
Provision for doubtful accounts	6	180
Noncash retirement plan expense	231
Other	38	32
Changes in:
Accounts receivable	17,400	22,886
Inventories	(4,171)	1,597
Other current assets	(8,737)	3
Accounts payable and accrued liabilities	(1,194)	(8,402)
Federal and state income taxes	6,256	(1,293)
Net cash provided by operating activities	22,817	24,473
Cash flows from investing activities:
Marketable securities purchased	(2,015)	(1,208)
Marketable securities - maturities and sales	3,838	9,912
Purchase of property, plant and equipment	(1,553)	(3,868)
Acquisition of businesses, net of cash acquired		(10,000)
Sale of property, plant and equipment	22	300
Net cash provided by (used in) investing activities	292	(4,864)
Cash flows from financing activities:
Dividends paid	(28,114)	(34,954)
Proceeds from sale of treasury stock	323	362
Other	(5)
Net cash used in financing activities	(27,796)	(34,592)
Net decrease in cash and cash equivalents	(4,687)	(14,983)
Cash and cash equivalents at beginning of year	54,043	22,953
Cash and cash equivalents at end of year	$ 49,356	$ 7,970

Basis Of Presentation

Basis Of Presentation	3 Months Ended
Basis Of Presentation	Apr. 05, 2015
Basis Of Presentation [Abstract]
Basis Of Presentation	NOTE A – BASIS OF PRESENTATION The consolidated interim financial statements included herein are unaudited and have been prepared by the Company pursuant to the rules and regulations of the United States Securities and Exchange Commission (“SEC”). In the opinion of management of the Company, the consolidated interim financial statements reflect all the adjustments which were of a normal recurring nature necessary for a fair presentation of the results of the interim periods. The condensed consolidated balance sheet as of December 31, 2014 is summarized from consolidated financial statements, but does not include all the disclosures contained therein and should be read in conjunction with the 2014 Annual Report on Form 10-K. Interim results for the period are not indicative of those for the year.

- Definition

The entire disclosure for organization, consolidation and basis of presentation of financial statements disclosure.

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Reclassifications

Reclassifications	3 Months Ended
Reclassifications	Apr. 05, 2015
Reclassifications [Abstract]
Reclassifications	NOTE B – RECLASSIFICATIONS Certain reclassifications have been made to the prior periods’ financial statements to conform to the current period’s financial statement presentation. These reclassifications did not affect net earnings or stockholders’ equity as previously reported.

Earnings Per Share

Earnings Per Share	3 Months Ended
Earnings Per Share	Apr. 05, 2015
Net Earnings Per Share [Abstract]
Net Earnings Per Share	NOTE C – EARNINGS PER SHARE Basic earnings per share is based on the weighted average number of common shares and participating securities outstanding during the period. Diluted earnings per share also includes the dilutive effect of additional potential common shares issuable. Unvested stock awards, which contain non-forfeitable rights to dividends whether paid or unpaid (“participating securities”), are included in the number of shares outstanding for both basic and diluted earnings per share calculations.

- Definition

The entire disclosure for earnings per share.

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Business Segments

3 Months Ended

Apr. 05, 2015

Business Segments [Abstract]

Business Segments

NOTE D – BUSINESS SEGMENTS

In the following summary, operating profit represents earnings before other income, principally interest income and income taxes. The Company's segments operate discretely from each other with no shared manufacturing facilities. Costs associated with corporate activities (such as cash and marketable securities management) and the assets associated with such activities are included within the Housewares/Small Appliances segment for all periods presented.



				(in thousands)
	Housewares / Small Appliances		Defense Products		Absorbent Products		Total
Quarter ended April 5, 2015
External net sales	$	23,293	$	59,678	$	18,028	$	100,999
Gross profit		4,840		16,088		(49)		20,879
Operating profit		2,026		11,074		(776)		12,324
Total assets		152,892		144,208		65,301		362,401
Depreciation and amortization		235		3,035		1,609		4,879
Capital expenditures		132		34		1,387		1,553

Quarter ended March 30, 2014
External net sales	$	19,363	$	48,289	$	18,902	$	86,554
Gross profit		3,789		11,305		626		15,720
Operating profit		944		6,027		11		6,982
Total assets		125,828		164,334		66,162		356,324
Depreciation and amortization		242		3,108		1,431		4,781
Capital expenditures		164		602		3,102		3,868

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

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+ Details

Business Segments (Tables)

3 Months Ended

Apr. 05, 2015

Business Segments [Abstract]

Summary Of Business Segments Information



				(in thousands)
	Housewares / Small Appliances		Defense Products		Absorbent Products		Total
Quarter ended April 5, 2015
External net sales	$	23,293	$	59,678	$	18,028	$	100,999
Gross profit		4,840		16,088		(49)		20,879
Operating profit		2,026		11,074		(776)		12,324
Total assets		152,892		144,208		65,301		362,401
Depreciation and amortization		235		3,035		1,609		4,879
Capital expenditures		132		34		1,387		1,553

Quarter ended March 30, 2014
External net sales	$	19,363	$	48,289	$	18,902	$	86,554
Gross profit		3,789		11,305		626		15,720
Operating profit		944		6,027		11		6,982
Total assets		125,828		164,334		66,162		356,324
Depreciation and amortization		242		3,108		1,431		4,781
Capital expenditures		164		602		3,102		3,868

- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

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Business Segments (Schedule Of Segment Information) (Details)

Business Segments (Schedule Of Segment Information) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 05, 2015	Mar. 30, 2014	Dec. 31, 2014
Segment Reporting Information [Line Items]
External net sales	$ 100,999	$ 86,554
Gross profit	20,879	15,720
Operating profit	12,324	6,982
Total assets	362,401	356,324	378,359
Depreciation and amortization	4,879	4,781
Capital expenditures	1,553	3,868
Housewares/ Small Appliances [Member]
Segment Reporting Information [Line Items]
External net sales	23,293	19,363
Gross profit	4,840	3,789
Operating profit	2,026	944
Total assets	152,892	125,828
Depreciation and amortization	235	242
Capital expenditures	132	164
Defense Products [Member]
Segment Reporting Information [Line Items]
External net sales	59,678	48,289
Gross profit	16,088	11,305
Operating profit	11,074	6,027
Total assets	144,208	164,334
Depreciation and amortization	3,035	3,108
Capital expenditures	34	602
Absorbent Products [Member]
Segment Reporting Information [Line Items]
External net sales	18,028	18,902
Gross profit	(49)	626
Operating profit	(776)	11
Total assets	65,301	66,162
Depreciation and amortization	1,609	1,431
Capital expenditures	$ 1,387	$ 3,102

Fair Value Of Financial Instruments

Fair Value Of Financial Instruments	3 Months Ended
Fair Value Of Financial Instruments	Apr. 05, 2015
Fair Value Of Financial Instruments [Abstract]
Fair Value Of Financial Instruments	NOTE E - FAIR VALUE OF FINANCIAL INSTRUMENTS The Company utilizes the methods of fair value as described in Financial Accounting Standard Board (“FASB”) Accounting Standard Codification (“ASC”) 820, Fair Value Measurements and Disclosures, to value its financial assets and liabilities. ASC 820 utilizes a three-tier fair value hierarchy which prioritizes the inputs used in measuring fair value. These tiers include: Level 1, defined as observable inputs such as quoted prices in active markets; Level 2, defined as inputs other than quoted prices in active markets that are either directly or indirectly observable; and Level 3, defined as unobservable inputs in which little or no market data exists, therefore requiring an entity to develop its own assumptions. The carrying amount for cash and cash equivalents, accounts receivable, accounts payable, and accrued liabilities approximates fair value due to the immediate or short-term maturity of these financial instruments.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

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Cash, Cash Equivalents And Marketable Securities

3 Months Ended

Apr. 05, 2015

Cash, Cash Equivalents And Marketable Securities [Abstract]

Cash, Cash Equivalents And Marketable Securities

NOTE F - CASH, CASH EQUIVALENTS AND MARKETABLE SECURITIES

The Company considers all highly liquid marketable securities with an original maturity of three months or less to be cash equivalents. Cash equivalents include money market funds. The Company deposits its cash in high quality financial institutions. The balances, at times, may exceed federally insured limits. Money market funds are reported at fair value determined using quoted prices in active markets for identical securities (Level 1, as defined by FASB ASC 820).

The Company has classified all marketable securities as available-for-sale which requires the securities to be reported at fair value, with unrealized gains and losses, net of tax, reported as a separate component of stockholders' equity. Highly liquid, tax-exempt variable rate demand notes with put options exercisable in three months or less are classified as marketable securities.

At April 5, 2015 and December 31, 2014, cost for marketable securities was determined using the specific identification method. A summary of the amortized costs and fair values of the Company’s marketable securities at the end of the periods presented is shown in the following table. All of the Company’s marketable securities are classified as Level 2, as defined by FASB ASC 820, with fair values determined using significant other observable inputs, which include quoted prices in markets that are not active, quoted prices of similar securities, recently executed transactions, broker quotations, and other inputs that are observable. There were no transfers into or out of Level 2 during the three months ended April 5, 2015.



(In Thousands)
	MARKETABLE SECURITIES
	Amortized Cost		Fair Value		Gross Unrealized Gains		Gross Unrealized Losses
April 5, 2015
Tax-exempt Municipal Bonds	$	9,126	$	9,132	$	8	$	2
Variable Rate Demand Notes		11,461		11,461		-		-
Total Marketable Securities	$	20,587	$	20,593	$	8	$	2

December 31, 2014
Tax-exempt Municipal Bonds	$	8,809	$	8,804	$	5	$	10
Variable Rate Demand Notes		13,600		13,600		-		-
Total Marketable Securities	$	22,409	$	22,404	$	5	$	10

Proceeds from maturities and sales of available-for-sale securities totaled $3,838,000 and $9,912,000 for the three month periods ended April 5, 2015 and March 30, 2014, respectively. There were no gross gains or losses related to sales of marketable securities during the same periods. Net unrealized gains included in other comprehensive income were $12,000 and $7,000 before taxes for the three month periods ended April 5, 2015 and March 30, 2014, respectively. No unrealized gains or losses were reclassified out of accumulated other comprehensive income during the same periods.

The contractual maturities of the marketable securities held at April 5, 2015 are as follows: $5,037,000 within one year; $4,490,000 beyond one year to five years; $6,481,000 beyond five years to ten years, and $4,585,000 beyond ten years. All of the instruments in the beyond five year ranges are variable rate demand notes which can be tendered for cash at par plus interest within seven days. Despite the stated contractual maturity date, to the extent a tender is not honored, the notes become immediately due and payable.

Cash, Cash Equivalents And Marketable Securities (Tables)

3 Months Ended

Apr. 05, 2015

Cash, Cash Equivalents And Marketable Securities [Abstract]

Summary Of The Amortized Costs And Fair Values Of Marketable Securities



(In Thousands)
	MARKETABLE SECURITIES
	Amortized Cost		Fair Value		Gross Unrealized Gains		Gross Unrealized Losses
April 5, 2015
Tax-exempt Municipal Bonds	$	9,126	$	9,132	$	8	$	2
Variable Rate Demand Notes		11,461		11,461		-		-
Total Marketable Securities	$	20,587	$	20,593	$	8	$	2

December 31, 2014
Tax-exempt Municipal Bonds	$	8,809	$	8,804	$	5	$	10
Variable Rate Demand Notes		13,600		13,600		-		-
Total Marketable Securities	$	22,409	$	22,404	$	5	$	10

Cash, Cash Equivalents And Marketable Securities (Narrative) (Details)

Cash, Cash Equivalents And Marketable Securities (Narrative) (Details) (USD $)	3 Months Ended
	Apr. 05, 2015	Mar. 30, 2014
Cash, Cash Equivalents And Marketable Securities [Line Items]
Transfers into Level 2	$ 0
Transfers out of Level 2	0
Proceeds from sales of available-for-sale securities	3,838,000	9,912,000
Gross gains or losses related to sales of marketable securities	0	0
Net unrealized losses included in accumulated other comprehensive income, before taxes	12,000	7,000
Contractual maturities of marketable securities within 1 year	5,037,000
Contractual maturities of marketable securities, years 2-5	4,490,000
Contractual maturities of marketable securities, years 6-10	6,481,000
Contractual maturities of marketable securities, after 10 years	4,585,000
Marketable securities liquidation period	7 days
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Cash, Cash Equivalents And Marketable Securities [Line Items]
Reclassification out of AOCI	$ 0	$ 0

Cash, Cash Equivalents And Marketable Securities (Summary Of The Amortized Costs And Fair Values Of Marketable Securities) (Details)

Cash, Cash Equivalents And Marketable Securities (Summary Of The Amortized Costs And Fair Values Of Marketable Securities) (Details) (USD $) In Thousands, unless otherwise specified	Apr. 05, 2015	Dec. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
MARKETABLE SECURITIES, Amortized Cost	$ 20,587	$ 22,409
MARKETABLE SECURITIES, Fair Value	20,593	22,404
MARKETABLE SECURITIES, Gross Unrealized Gains	8	5
MARKETABLE SECURITIES - Gross Unrealized Losses	2	10
Tax-Exempt Municipal Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
MARKETABLE SECURITIES, Amortized Cost	9,126	8,809
MARKETABLE SECURITIES, Fair Value	9,132	8,804
MARKETABLE SECURITIES, Gross Unrealized Gains	8	5
MARKETABLE SECURITIES - Gross Unrealized Losses	2	10
Variable Rate Demand Notes [Member]
Schedule of Available-for-sale Securities [Line Items]
MARKETABLE SECURITIES, Amortized Cost	11,461	13,600
MARKETABLE SECURITIES, Fair Value	$ 11,461	$ 13,600

Commitments And Contingencies

Commitments And Contingencies	3 Months Ended
Commitments And Contingencies	Apr. 05, 2015
Commitments And Contingencies [Abstract]
Commitments And Contingencies	NOTE G – COMMITMENTS AND CONTINGENCIES The Company is involved in largely routine litigation incidental to its business. Management believes the ultimate outcome of the litigation will not have a material effect on the Company's consolidated financial position, liquidity, or results of operations.

- Definition

The entire disclosure for commitments and contingencies.

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Business Acquisition

3 Months Ended

Apr. 05, 2015

Business Acquisitions [Abstract]

Business Acquisitions

NOTE H – BUSINESS ACQUISITION

On January 24, 2014, AMTEC Corporation, a wholly-owned subsidiary of the Company, purchased substantially all of the assets of Chemring Energetic Devices, Inc.’s business located in Clear Lake, South Dakota, and all of the real property owned by Technical Ordnance Realty, LLC. The Clear Lake facility is a manufacturer of detonators, booster pellets, release cartridges, lead azide, and other military energetic devices and materials. Its major customers include U.S. and foreign government agencies, AMTEC Corporation, and other defense contractors. The acquisition of the Clear Lake facility complements the Defense segment’s existing line of products. The total consideration transferred was $10,534,000, consisting of $10,000,000 of cash paid at closing, and an additional cash payment of $534,000, which was made during the second quarter of 2014.

The acquisition was accounted for under the acquisition method of accounting with the Company treated as the acquiring entity. Accordingly, the consideration paid by the Company to complete the acquisition has been recorded to the assets acquired and liabilities assumed based upon their estimated fair values as of the date of acquisition. The carrying values for current assets and liabilities were deemed to approximate their fair values due to the short-term nature of these assets and liabilities. The following table shows the amounts recorded as of the acquisition date.



	(in thousands)

Receivables	$	1,498
Inventory		4,688
Other current assets		28
Property, plant and equipment		4,800
Total assets acquired		11,014
Less: Current liabilities assumed		480
Net assets acquired	$	10,534

The amount shown above for receivables represents the gross accounts receivable from the sales of goods, net of an allowance for doubtful accounts of $20,000.

The Company’s statement of comprehensive income for the first quarter of 2014 includes revenue of $2,015,000 and earnings of $155,000 from the acquired facility from the date of acquisition. The following unaudited pro forma condensed consolidated results of operations has been prepared as if the acquisition had occurred as of the first day of the fiscal year prior to the fiscal year in which the acquisition was completed.



(unaudited)
(in thousands, except per share data)
	Quarter Ended
	March 30, 2014

Net sales	$	87,189
Net earnings		4,410

Net earnings per share (basic and diluted)	$	0.64
Weighted average shares outstanding (basic and diluted)		6,921

The unaudited pro forma financial information presented above is not intended to represent or be indicative of what would have occurred if the transactions had taken place on the dates presented and is not indicative of what the Company’s actual results of operations would have been had the acquisitions been completed at the beginning of the periods indicated above. Further, the pro forma combined results reflect one-time costs to fully merge and operate the combined organization more efficiently, but do not reflect anticipated synergies expected to result from the combination and should not be relied upon as being indicative of the future results that the Company will experience.

- Definition

The entire disclosure for a business combination (or series of individually immaterial business combinations) completed during the period, including background, timing, and recognized assets and liabilities. The disclosure may include leverage buyout transactions (as applicable).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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+ Details

Business Acquisition (Tables)

3 Months Ended

Apr. 05, 2015

Business Acquisitions [Abstract]

Summary of Assets Acquired and Liabilities Assumed in a Business Combination



	(in thousands)

Receivables	$	1,498
Inventory		4,688
Other current assets		28
Property, plant and equipment		4,800
Total assets acquired		11,014
Less: Current liabilities assumed		480
Net assets acquired	$	10,534

Summary Pro Forma Results of Operations for a Material Business Acquisition



(unaudited)
(in thousands, except per share data)
	Quarter Ended
	March 30, 2014

Net sales	$	87,189
Net earnings		4,410

Net earnings per share (basic and diluted)	$	0.64
Weighted average shares outstanding (basic and diluted)		6,921

Business Acquisition (Narrative) (Details)

Business Acquisition (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		1 Months Ended	3 Months Ended
	Apr. 05, 2015	Mar. 30, 2014	Jan. 24, 2014 Tech Ord [Member]	Jun. 29, 2014 Tech Ord [Member]	Mar. 30, 2014 Tech Ord [Member]
Business Acquisition [Line Items]
Net sales	$ 100,999	$ 86,554
Business Combination, Consideration Transferred			10,534
Cash Paid to Acquire Business			10,000	534
Estimated Amount of Acquired Receivable Uncollectible			20
Revenue of Acquiree Included in Conolidated Income Statement Since Acquisition Date					2,015
Earnings (Loss) of Acquiree Included in Conolidated Income Statement Since Acquisition Date					$ 155

Business Acquisition (Schedule of Assets Acquired and Liabilities Assumed) (Details)

Business Acquisition (Schedule of Assets Acquired and Liabilities Assumed) (Details) (Tech Ord [Member], USD $) In Thousands, unless otherwise specified	Jan. 24, 2014
Tech Ord [Member]
Business Acquisition [Line Items]
Receivables	$ 1,498
Inventory	4,688
Other Current Assets	28
Property, Plant and Equipment	4,800
Total Assets Acquired	11,014
Less: Current Liabilities Assumed	480
Net Assets Acquired	$ 10,534

Business Acquisition (Schedule of Pro Forma Results of Operations) (Details)

Business Acquisition (Schedule of Pro Forma Results of Operations) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Apr. 05, 2015	Mar. 30, 2014
Business Acquisition [Line Items]
Basic and diluted	6,943	6,921
Tech Ord [Member]
Business Acquisition [Line Items]
Net Sales		$ 87,189
Net Earnings		$ 4,410
Net earnings per share (basic and diluted)		$ 0.64
Basic and diluted		6,921

Recently Issued Accounting Pronouncement

Recently Issued Accounting Pronouncement	3 Months Ended
Recently Issued Accounting Pronouncement	Apr. 05, 2015
Recently Issued Accounting Pronouncement [Abstract]
Recently Issued Accounting Pronouncement	NOTE I – RECENTLY ISSUED ACCOUNTING PRONOUNCEMENT In May 2014, the FASB issued Accounting Standards Update ("ASU") 2014-09, Revenue from Contracts with Customers (Topic 606) which amended the existing accounting standards for revenue recognition. ASU 2014-09 establishes principles for recognizing revenue upon the transfer of promised goods or services to customers, in an amount that reflects the expected consideration received in exchange for those goods or services. It is effective for annual reporting periods beginning after December 15, 2016, if not deferred as discussed below. Early adoption is not permitted. The amendment may be applied retrospectively to each prior period presented or retrospectively with the cumulative effect recognized as of the date of initial application. In April 2015, the FASB proposed a one-year deferral of the effective date of ASU 2014-09. If approved, the new standard will be effective for annual reporting periods beginning after December 15, 2017. The Company is currently in the process of evaluating the impact of adoption of the ASU on its consolidated financial statements, but does not expect the impact to be material.