National Presto Industries (NPK) 10-K 16 Mar 18 2017 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2017	Mar. 01, 2018	Jul. 02, 2017
Document And Entity Information [Abstract]
Document Type	10-K
Trading Symbol	npk
Amendment Flag	false
Document Period End Date	Dec. 31, 2017
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2,017
Entity Registrant Name	NATIONAL PRESTO INDUSTRIES INC
Entity Central Index Key	80,172
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		6,968,120
Entity Public Float			$ 544,256,037
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
CURRENT ASSETS:
Cash and cash equivalents	$ 11,222	$ 27,034
Marketable securities	144,252	84,457
Accounts receivable	67,089	69,101
Less allowance for doubtful accounts	1,869	1,816
Accounts receivable, net	65,220	67,285
Inventories:
Finished goods	27,242	25,200
Work in process	72,219	66,528
Raw materials and supplies	4,978	3,675
Total inventory	104,439	95,403
Assets held for sale	6,189	58,893
Other current assets	7,186	7,423
Total current assets	338,508	340,495
PROPERTY, PLANT AND EQUIPMENT:
Land and land improvements	4,985	4,933
Buildings	47,412	47,012
Machinery and equipment	51,141	49,218
PROPERTY, PLANT AND EQUIPMENT	103,538	101,163
Less allowance for depreciation	58,370	51,688
PROPERTY, PLANT AND EQUIPMENT, NET	45,168	49,475
GOODWILL	11,485	11,485
INTANGIBLE ASSETS, net	3,330	4,961
NOTES RECEIVABLE	6,750	6,534
DEFERRED INCOME TAXES	995
OTHER ASSETS	5,637	4,644
Total assets	411,873	417,594
CURRENT LIABILITIES:
Accounts payable	28,445	39,584
Federal and state income taxes	3,750	6,273
Accrued liabilities	13,092	12,244
Liabilities held for sale	210	6,253
Total current liabilities	45,497	64,354
DEFERRED INCOME TAXES		3,004
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS' EQUITY
Common stock, $1 par value: Authorized: 12,000,000 shares at December 31, 2017 and 2016; Issued: 7,440,518 shares at December 31, 2017 and 2016; Outstanding: 6,968,120 and 6,950,786 shares at December 31, 2017 and 2016, respectively	7,441	7,441
Paid-in capital	9,074	7,913
Retained earnings	364,757	350,203
Accumulated other comprehensive loss	(86)	(47)
Stockholders' equity before treasury stock	381,186	365,510
Less treasury stock, at cost, 472,398 and 489,732 shares at December 31, 2017 and 2016, respectively	14,810	15,274
Total stockholders' equity	366,376	350,236
Total liabilities and stockholders' equity	$ 411,873	$ 417,594

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2017	Dec. 31, 2016
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
Common stock, shares outstanding	6,968,120	6,950,786
Treasury stock, at cost	472,398	489,732

Consolidated Statements Of Comp

Consolidated Statements Of Comprehensive Income - USD ($) shares in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Consolidated Statements Of Comprehensive Income [Abstract]
Net sales	$ 333,633,000	$ 341,905,000	$ 355,649,000
Cost of sales	246,399,000	256,243,000	266,216,000
Gross profit	87,234,000	85,662,000	89,433,000
Selling and general expenses	22,900,000	22,429,000	21,735,000
Intangibles amortization	2,630,000	721,000	5,173,000
Operating profit	61,704,000	62,512,000	62,525,000
Other income	3,581,000	810,000	397,000
Earnings from continuing operations before provision for income taxes	65,285,000	63,322,000	62,922,000
Provision for income taxes from continuing operations	21,971,000	21,407,000	20,760,000
Earnings (loss) from continuing operations	43,314,000	41,915,000	42,162,000
Earnings (loss) from discontinued operations, net of tax	9,645,000	2,649,000	(1,666,000)
Net earnings	$ 52,959,000	$ 44,564,000	$ 40,496,000
Weighted average shares outstanding:
Basic and diluted	6,989	6,970	6,951
Earnings (loss) per share, basic and diluted:
From continuing operations	$ 6.20	$ 6.01	$ 6.07
From discontinued operations	1.38	0.38	(0.24)
Net earnings per share	$ 7.58	$ 6.39	$ 5.83
Other comprehensive loss, net of tax:
Unrealized loss on available-for-sale securities	$ (39,000)	$ (38,000)	$ (6,000)
Comprehensive income	$ 52,920,000	$ 44,526,000	$ 40,490,000

Consolidated Statements Of Cash

Consolidated Statements Of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cash flows from operating activities:
Net earnings	$ 52,959,000	$ 44,564,000	$ 40,496,000
Adjustments to reconcile net earnings to net cash provided by operating activities:
Provision for depreciation	7,258,000	13,962,000	10,427,000
Intangibles amortization	2,630,000	721,000	5,173,000
Deferred income tax provision (benefit)	(4,001,000)	6,360,000	(998,000)
Gain on divestiture of business	(11,413,000)
Net gain on involuntary conversion of machinery and equipment	(2,713,000)	(968,000)
Loss on disposal and impairment of property, plant and equipment	248,000	434,000	70,000
Provision for doubtful accounts	70,000	1,000	516,000
Noncash retirement plan expense	675,000	782,000	775,000
Other	238,000	217,000	220,000
Changes in operating accounts:
Accounts receivable	1,848,000	(13,539,000)	708,000
Inventories	(8,730,000)	(7,528,000)	(9,398,000)
Other assets and current assets	(806,000)	5,148,000	(2,894,000)
Accounts payable and accrued liabilities	(11,462,000)	12,145,000	(2,684,000)
Federal and state income taxes receivable/payable	(2,523,000)	4,077,000	3,864,000
Net cash provided by operating activities	24,278,000	66,376,000	46,275,000
Cash flows from investing activities:
Marketable securities purchased	(192,584,000)	(86,119,000)	(20,170,000)
Marketable securities - maturities and sales	132,752,000	33,863,000	10,306,000
Proceeds from divestiture of business, net of cash paid	64,033,000
Purchase of property, plant and equipment	(7,396,000)	(6,950,000)	(6,461,000)
Note issued		(2,419,000)
Proceeds from insurnace settlement	2,104,000	987,000
Acquisition of intangible assets	(1,000,000)	(211,000)
Sale of property, plant and equipment	1,000	3,000	25,000
Net cash used in investing activities	(2,090,000)	(60,846,000)	(16,300,000)
Cash flows from financing activities:
Dividends paid	(38,405,000)	(35,161,000)	(28,114,000)
Proceeds from sale of treasury stock	519,000	443,000	323,000
Other	(114,000)		(5,000)
Net cash used in financing activities	(38,000,000)	(34,718,000)	(27,796,000)
Net increase (decrease) in cash and cash equivalents	(15,812,000)	(29,188,000)	2,179,000
Cash and cash equivalents at beginning of year	27,034,000	56,222,000	54,043,000
Cash and cash equivalents at end of year	11,222,000	27,034,000	56,222,000
Supplemental disclosures of cash flow information:
Income taxes	$ 32,837,000	$ 17,278,000	$ 21,930,000

Consolidated Statements Of Stoc

Consolidated Statements Of Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Total
Balance at Dec. 31, 2014	$ 7,441	$ 5,906	$ 328,417	$ (3)	$ (16,318)	$ 325,443
Balance, shares at Dec. 31, 2014	6,917,000
Net earnings			40,496			40,496
Unrealized loss on available-for-sale securities				(6)		(6)
Dividends paid			(28,114)			(28,114)
Other		869			566	1,435
Other, shares	18,000
Balance at Dec. 31, 2015	$ 7,441	6,775	340,799	(9)	(15,752)	339,254
Balance, shares at Dec. 31, 2015	6,935,000
Net earnings			44,564			44,564
Unrealized loss on available-for-sale securities				(38)		(38)
Dividends paid			(35,161)			(35,161)
Other		1,138	1		478	1,617
Other, shares	16,000
Balance at Dec. 31, 2016	$ 7,441	7,913	350,203	(47)	(15,274)	$ 350,236
Balance, shares at Dec. 31, 2016	6,951,000					6,950,786
Net earnings			52,959			$ 52,959
Unrealized loss on available-for-sale securities				(39)		(39)
Dividends paid			(38,405)			(38,405)
Other		1,161			464	1,625
Other, shares	17,000
Balance at Dec. 31, 2017	$ 7,441	$ 9,074	$ 364,757	$ (86)	$ (14,810)	$ 366,376
Balance, shares at Dec. 31, 2017	6,968,000					6,968,120

Consolidated Statements Of Sto7

Consolidated Statements Of Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statement of Stockholders' Equity [Abstract]
Regular dividends per share paid	$ 1	$ 1	$ 1
Extra dividends per share paid	$ 4.50	$ 4.05	$ 3.05

Summary Of Significant Accounti

Summary Of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2017
Summary Of Significant Accounting Policies [Abstract]
Summary Of Significant Accounting Policies	A. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:  (1) USE OF ESTIMATES IN THE PREPARATION OF FINANCIAL STATEMENTS: In preparation of the Company's Consolidated Financial Statements in conformity with accounting principles generally accepted in the United States, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities and related revenues and expenses. Actual results could differ from the estimates used by management.  (2) BASIS OF PRESENTATION: The Consolidated Financial Statements include the accounts of National Presto Industries, Inc. and its subsidiaries, all of which are wholly-owned. All material intercompany accounts and transactions are eliminated. For a further discussion of the Company's business and the segments in which it operates, please refer to Note L .  On January 3, 2017, the Company and its wholly-owned subsidiary, Presto Absorbent Products, Inc. (“PAPI”), entered into an asset purchase agreement wherein substantially all PAPI assets were sold and certain liabilities were assigned to Drylock Technologies, LTD. (“Drylock”) in exchange for $68,448,000 . The proceeds amount differs from the amount previously disclosed because of the customary post-closing adjustments that were finalized during the second quarter of 2017, totaling $1,448,000 . The asset purchase agreement also provides for additional proceeds of $4,000,000 upon the sale of certain delayed assets, consisting of machinery and equipment that were the subject of an involuntary conversion, at a future date. As a result of this transaction, the Company classified its results of operations for all periods presented to reflect its Absorbent Products business as a discontinued operation and classified the assets and liabilities of its Absorbent Products business as held for sale. See Note P for further discussion.  (3) RECLASSIFICATIONS: In addition to the reclassifications mentioned in Note A(2) above, certain reclassifications have been made to the prior periods' fi nancial statements to conform to the current period’s financial statement presentation. These reclassifications did not affect net earnings or stockholders’ equity as previously reported . (4) FAIR VALUE OF FINANCIAL INSTRUMENTS: The Company utilizes the methods of determining 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. The fair value of marketable securities are discussed in Note A(5).  (5) CASH, CASH EQUIVALENTS AND MARKETABLE SECURITIES:  Cash and Cash Equivalents: 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's cash management policy provides for its bank disbursement accounts to be reimbursed on a daily basis. Checks issued but not presented to the bank for payment of $ 3,157,000 and $ 5,883,000 at December 31, 2017 and 2016, respectively, are included as reductions of cash and cash equivalents or bank overdrafts in accounts payable, as appropriate.  Marketable Securities: 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 December 31, 2017 and 2016, 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 December 31 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 2017 and 2016.      (In thousands)  MARKETABLE SECURITIES   Amortized Cost Fair Value Gross Unrealized Gains Gross Unrealized Losses  December 31, 2017  Tax-exempt Municipal Bonds $ 30,103 $ 29,994 $ - $ 109  Variable Rate Demand Notes 114,258 114,258 - -  Total Marketable Securities $ 144,361 $ 144,252 $ - $ 109   December 31, 2016  Tax-exempt Municipal Bonds $ 38,223 $ 38,151 $ 1 $ 73  Variable Rate Demand Notes 46,306 46,306 - -  Total Marketable Securities $ 84,529 $ 84,457 $ 1 $ 73  Proceeds from sales and maturities of marketable securities totaled $ 132,752,000 in 2017, $ 33,863,000 in 2016, and $ 10,306,000 in 2015. There were no realized gross gains or losses related to sales of marketable securities during the years ended December 31, 2017, 2016 and 2015. Net unrealized losses included in other comprehensive income were $ 37,000 , $ 57,000 and $ 9,000 before taxes for the years ended December 31, 2017, 2016, and 2015, 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 December 31, 2017 are as follows: $ 25,741,000 within one year; $ 16,226,000 beyond one year to five years; $ 12,175,000 beyond five years to ten years, and $ 90,110,000 beyond ten years. All of the instruments in the beyond five year ranges are variable rate demand notes which, as noted above, 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.  (6) ACCOUNTS RECEIVABLE: The Company's accounts receivable is related to sales of products. Credit is extended based on prior experience with the customer and evaluation of customers' financial condition. Accounts receivable are primarily due within 25 to 60 days. The Company does not accrue interest on past due accounts receivable. Receivables are written off only after all collection attempts have failed and are based on individual credit evaluation and the specific circumstances of the customer. The allowance for doubtful accounts represents an estimate of amounts considered uncollectible and is determined based on the Company's historical collection experience, adverse situations that may affect the customer's ability to pay, and prevailing economic conditions.  (7) INVENTORIES: Housewares/Small Appliance segment inventories are stated at the lower of cost or market with cost being determined principally on the last-in, first-out (LIFO) method. Defense segment inventories are stated at the lower of cost and net realizable value determined principally on the first-in, first-out (FIFO) method. Inventoried costs relating to contracts in progress are stated at actual production costs, including factory overhead, initial tooling, and other related costs incurred to date, reduced by amounts associated with recognized sales, utilizing a standard costing type method. The Company evaluates inventories to determine if there are any excess or obsolete inventories on hand.  (8) PROPERTY, PLANT AND EQUIPMENT: Property, plant and equipment are stated at cost. Straight-line depreciation is provided in amounts sufficient to charge the costs of depreciable assets to operations over their service lives which are estimated at 15 to 40 years for buildings, 3 to 10 years for machinery and equipment, and 15 to 20 years for land improvements. The Company reviews long-lived assets consisting principally of property, plant, and equipment, for impairment when material events and changes in circumstances indicate the carrying value may not be recoverable. Approximately $374,000 and $764,000 of construction in progress in the Company’s Defense segment is presented on the Consolidated Balance Sheet as Buildings and Machinery and Equipment, respectively, at December 31, 2017. The construction in progress is expected to be completed by the fourth quarter of 2018. Approximately $3,461,000 of construction in progress in the Company’s Defense segment is presented on the Consolidated Balance Sheet as Buildings at December 31, 2016.  (9) GOODWILL: The Company recognizes the excess cost of acquired entities over the net amount assigned to the fair value of assets acquired and liabilities assumed as goodwill. Goodwill is tested for impairment on an annual basis at the start of the fourth quarter and between annual tests whenever an impairment is indicated, such as the occurrence of an event that would more likely than not reduce the fair value of the reporting unit below its carrying amount. Impairment losses are recognized whenever the implied fair value of goodwill is less than its carrying value. No goodwill impairments were recognized during 2017, 2016, or 2015.  The Company's goodwill as of December 31, 2017 and 201 6 was $ 11,485,000 , rel ating entirely to its Defense segment, which had no cumulative impairment charges at December 31, 2017.  (10) INTANGIBLE ASSETS: Intangible assets primarily consist of the value of an acquired government sales contract and the value of trademarks, trade secrets, and consulting agreements. The intangible assets are all attributable to the Defense segment. The government sales contract intangible asset is amortized based on units fulfilled under the applicable contract, while the other intangible assets are amortized on a straight-line basis that approximates economic use, over periods ranging from 2 to 10 years. As of December 31, 2017, the Company determined that the trade secrets, which were acquired during 2017, had an indefinite life.  Intangible assets are evaluated for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable. Th ere were no impairments of intangible assets recognized during 2017, 2016, or 2015.  The gross carrying amounts of the government sales contract and other intangible assets subject to amortization were $21,690,000 and $211,000 , respectively, totaling $21,901,000 at December 31, 2017 and 2016. Accumulated amortization was $ 19,570,000 and $ 16,940,000 at December 31, 2017 and 2016, respectively. Amortization expense was $ 2,630,000 , $ 721,000 , and $ 5,173,000 during the years ended December 31, 2017, 2016, and 2015, respectively. Estimated amortization expense as of December 31, 2017 for the five succeeding years is shown in the following table:      Years ending December 31: (In thousands)  2018 $ 2,171  2019 21  2020 21  2021 21  2022 21   (11) OTHER ASSETS: Other assets includes prepayments that are made from time to time by the Company for certain materials used in the manufacturing process in the Housewares/Small Appliance segment. The Company expects to utilize the prepayments and related materials over an estimated period of up to two years. As of December 31, 2017 and 2016, $11,567,000 and $10,974,000 of such prepayments, respectively, remained unused and outstanding. At December 31, 2017 and 2016, $5,930,000 and $6,330,000 of these amounts, respectively, are included in Other Current Assets, representing the Company’s best estimate of the expected utilization of the prepayments and related materials during the twelve-month periods following those dates .  (12) REVENUE RECOGNITION: For all of its segments, the Company recognizes revenue when product is shipped or title passes pursuant to customers' orders, the price is fixed and collection is reasonably assu red. For the Housewares/Small A ppliance segment, the Company provides for its 60 -day over-the-counter return privilege and warranties at the time of shipment. Net sales for this segment are calculated by deducting early payment discounts and cooperative advertising allowances from gross sales. The Company records cooperative advertising allowances when revenue is recognized. See Note A(13) for a description of the Company’s policy for sales returns.  (13) SALES & RETURNS: Sales are recorded net of estimated discounts and returns. The latter pertain primarily to warranty returns, returns of seasonal items, and returns of those newly introduced products sold with a return privilege within the Housewares/Small Appliance segment. The calculation of warranty returns is based in large part on historical data, while seasonal and new product returns are primarily developed using customer provided information.  (14) SHIPPING AND HANDLING COSTS: In accordance with FASB ASC 605-45, Revenue Recognition , the Company includes shipping and handling revenues in net sales and shipping costs in cost of sales.  (15) ADVERTISING: The Company's policy is to expense advertising as incurred and include it in selling and general expenses. Advertising expense was $ 174,000 , $ 369,000 , and $ 98,000 in 2017, 2016, and 2015, respectively.  (16) PRODUCT WARRANTY: The Company’s Housewares/Small Appliance segment’s products are generally warranted to the original owner to be free from defects in material and workmanship for a period of 1 to 12 years from date of purchase. The Company allows a 60 -day over-the-counter initial return privilege through cooperating dealers. The Company services its products through a corporate service repair operation. The Company estimates its product warranty liability based on historical percentages which have remained relatively consistent over the years.  The product warranty liability is included in accounts payable on the balance sheet. The following table shows the changes in product warranty liability for the period:     (In thousands)  Year Ended December 31  2017 2016  Beginning balance January 1 $ 543 $ 487  Accruals during the period 268 549  Charges / payments made under the warranties (428) (493)  Balance December 31 $ 383 $ 543  (17) STOCK-BASED COMPENSATION: The Company accounts for stock-based compensation in accordance with ASC 718, Compensation — Stock Compensation . Under the fair value recognition provisions of ASC 718, stock-based compensation cost is measured at the grant date based on the fair value of the award and is recognized as expense ratably over the requisite service period, net of estimated forfeitures. As more fully described in Note F , the Company awards non-vested restricted stock to employees and executive officers.  (18) INCOME TAXES: Deferred income tax assets and liabilities are recognized for the differences between the financial and income tax reporting bases of assets and liabilities based on enacted tax rates and laws. The deferred income tax provision or benefit generally reflects the net change in deferred income tax assets and liabilities during the year. The current income tax provision reflects the tax consequences of revenues and expenses currently taxable or deductible on various income tax returns for the year reported. Income tax contingencies are accounted for in accordance with FASB ASC 740, Income Taxes . See Note H for summaries of the provision, the effective tax rates, and the tax effects of the cumulative temporary differences resulting in deferred tax assets and liabilities. In December 2017, the United States enacted changes to its tax laws, which included a reduction of the corporate income tax rate from 35% to 21% , beginning in 2018. The reduction in the tax rate resulted in a revaluation of the Company’s deferred tax assets and liabilities held at December 31, 2017 .  (19) RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS: In January 2017, the FASB issued ASU No. 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment , which eliminates the performance of Step 2 from the goodwill impairment test. In performing its annual or interim impairment testing, an entity will instead compare the fair value of the reporting unit with its carrying amount and recognize any impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value. Additionally, an entity should consider income tax effects from any tax deductible goodwill on the carrying amount of the reporting unit when measuring the goodwill impairment loss. The standard is effective for fiscal years beginning after December 15, 2019. Early adoption is permitted for interim or annual impairment tests performed on testing dates after January 1, 2017. The Company does not expect the adoption of ASU 2017-04 to have a material impact on its consolidated financial statements.  In January 2017, the FASB issued ASU No. 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business , which provides guidance in evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The definition of a business affects many areas of accounting, including acquisitions, disposals, goodwill, and consolidation. The guidance is effective for public companies for fiscal years beginning after December 15, 2017, including interim periods within those periods, with early adoption permitted under certain circumstances. The Company does not expect the adoption of ASU 2017-01 to have a material impact on its consolidated financial statements.  In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments , which addresses diversity in how certain cash receipts and cash payments are presented and classified in the statement of cash flows. ASU 2016-15 provides guidance on the following eight specific cash flow issues: debt prepayment or debt extinguishment costs; settlement of zero-coupon debt instruments or other debt instruments with coupon interest rates that are insignificant in relation to the effective interest rate of the borrowing; contingent consideration payments made after a business combination; proceeds from the settlement of insurance claims; proceeds from the settlement of corporate-owned life insurance policies, including bank-owned life insurance policies; distributions received from equity method investees; beneficial interests in securitization transactions; and separately identifiable cash flows and application of the predominance principle. ASU 2016-15 is effective for public business entities for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. The Company does not expect the adoption of ASU 2016-15 to have a material impact on its consolidated financial statements.  In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments . ASU 2016-13 provides guidance for estimating credit losses on certain types of financial instruments, including trade receivables, by introducing an approach based on expected losses. The expected loss approach will require entities to incorporate considerations of historical information, current information and reasonable and supportable forecasts. ASU 2016-13 also amends the accounting for credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration. The guidance is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. The guidance requires a modified retrospective transition method and early adoption is permitted. The Company does not expect the adoption of ASU 2016-13 to have a material impact on its consolidated financial statements.  In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) , which establishes a right-of-use (ROU) model that requires a lessee to record a ROU asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement. The new standard is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. A modified retrospective transition approach is required. The Company is in the early stages of evaluating the impact of the adoption of ASU 2016-02 on its consolidated financial statements.  In January 2016, the FASB issued ASU 2016-01, Financial Instruments-Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities , which provides guidance for the recognition, measurement, presentation, and disclosure of financial assets and liabilities. The guidance is effective for reporting periods (interim and annual) beginning after December 15, 2017. The Company does not expect the adoption of ASU 2016-01 to have a material effect on its consolidated financial statements.  In May 2014, the FASB issued 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, 2017. The Company will adopt ASU 2014-09 as of January 1, 2018 utilizing the modified retrospective transition method. The Company evaluated the impact of the standard on its two business segments, Housewares/Small Appliance and Defense. Representative samples of existing revenue contracts for each material revenue stream were considered and evaluated. That evaluation entailed a review of the “five-step” model established by ASU 2014-09 to identify the cont r act, performance obligations, the transaction price, the process for allocating the transaction price to performance obligations, the timing and pattern of revenue recognition, and additional disclosures that may be required. The Company has determined that there are no material differences resulting from the adoption of ASU 2014-09. As required by ASU 2014-09, the Company will present expanded disclosures related to revenues and contracts with customers in the first quarter of 2018, the assessment of which is ongoing. The Company believes its business processes, systems, and controls are appropriate to support recognition and disclosure under ASU 2014-09.  Other pronouncements issued but not effective until after December 31, 2017, are not expected to have a material impact on the Company's consolidated financial statements.

Inventories

Inventories	12 Months Ended
	Dec. 31, 2017
Inventories [Abstract]
Inventories	B. INVENTORIES: The amount of inventories valued on the LIFO basis was $ 26,019,000 and $ 25,031,000 as of December 31, 2017 and 2016, respectively, and consists of housewares/small appliance finished goods. Under LIFO, inventories are valued at approximately $ 3,835,000 and $ 2,585,000 below current cost determined on a first-in, first-out (FIFO) basis at December 31, 2017 and 2016, respectively. During the years ended December 31, 2017, 2016, and 2015, $ 64,000 , $ 2,451,000 , and $ 0 , respectively, of a LIFO layer was liquidated. The Company uses the LIFO method of inventory accounting to improve the matching of costs and revenues for the Housewares/Small Appliance segment.  The following table describes that which would have occurred if LIFO inventories had been valued at current cost determined on a FIFO basis:     Increase (Decrease) – (In thousands, except per share data)  Year Cost of Sales Net Earnings Earnings Per Share  2017 $ (1,250) $ 830 $ 0.12  2016 $ 443 $ (292) $ (0.04)  2015 $ 763 $ (505) $ (0.07)  This information is provided for comparison with companies using the FIFO basis.  Inventory for Defense and raw materials of the Housewares/Small Appliance segments are valued under the FIFO method and total $ 78,420,000 and $ 70,372,000 at December 31, 2017 and 2016, respectively. At December 31, 2017, the FIFO total was comprised of $ 1,223,000 of finished goods, $ 72,219,000 of work in process, and $ 4,978,000 of raw material. At December 31, 2016, the FIFO total was comprised of $ 169,000 of finished goods, $ 66,528,000 of work in process, and $ 3,675,000 of raw material.

Accrued Liabilities

Accrued Liabilities	12 Months Ended
	Dec. 31, 2017
Accrued Liabilities [Abstract]
Accrued Liabilities	C. ACCRUED LIABILITIES: At December 31, 2017, accrued liabilities consisted of payroll $ 5,827,000 , product liability $ 4,965,000 , environmental $ 1,150,000 , and other $ 1,150,000 . At December 31, 2016, accrued liabilities consisted of payroll $4,948,000 , product liability $ 5,172,000 , environmental $ 1,010,000 , and other $ 1,114,000 .  The Company is self-insured for health care costs, although it does carry stop loss and other insurance to cover health care claims once they reach a specified threshold. The Company is also subject to product liability claims in the normal course of business. It is partly self-insured for product liability claims, and therefore records an accrual for known claims and estimated incurred but unreported claims in the Company’s Consolidated Financial Statements. The Company utilizes historical trends and other analysis to assist in determining the appropriate accrual. An increase in the number or magnitude of claims could have a material impact on the Company’s financial condition and results of operations. The Company's policy is to accrue for legal fees expected to be incurred in connection with loss contingencies. See Note K for a discussion of environmental remediation liabilities.

Treasury Stock

Treasury Stock	12 Months Ended
	Dec. 31, 2017
Treasury Stock [Abstract]
Treasury Stock	D. TREASURY STOCK: As of December 31, 2017, the Company has authority from the Board of Directors to reacquire an additional 503,373 shares. During 2017 and 2015, 1,139 and 88 shares, respectively, were acquired from participants in the Company’s Incentive Compensation Plans described in Note F to cover those participants’ tax withholding obligations related to vested stock grants in accordance with the Plans’ rules. No shares were reacquired in 2016. Treasury shares have been used for stock based compensation and to fund a portion of the Company's 401(k) contributions.

Net Earnings Per Share

Net Earnings Per Share	12 Months Ended
	Dec. 31, 2017
Net Earnings Per Share [Abstract]
Net Earnings Per Share	E. NET 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.

Stock-Based Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2017
Stock-Based Compensation [Abstract]
Stock-Based Compensation	F. STOCK-BASED COMPENSATION: The Company, from time to time, enters into separate non-vested share-based payment arrangements with employees and executive officers under the Incentive Compensation Plan approved by stockholders on May 18, 2010 and the 2017 Incentive Compensation Plan approved by shareholders on May 16, 2017, which authorized 50,000 and 150,000 shares, respec t ively, to be available for grants. The Compensation Committee of the Company’s Board of Directors approves all stock-based compensation awards for employees and executive officers of the Company. The Company grants restricted stock that is subject to continued employment and vesting conditions, but has dividend and voting rights, and uses the fair-market value of the Company’s common stock on the grant date to measure the fair value of the awards. The fair value of restricted stock is recognized as expense ratably over the requisite serviced period, net of estimated forfeitures.  During 2017, 2016, and 2015, the Company granted 7,837 , 3,162 and 5,779 shares of restricted stock, respectively, to 22 employees and executive officers of the Company. Unless otherwise vested early in accordance with the Incentive Compensation Plans, the restricted stock vests on specified dates in 2020 through 2023 , subject to the recipients’ continued employment or service through each applicable vesting date.  The Company recognized pre-tax compensation expense in the Consolidated Statements of Comprehensive Income related to stock-based compensation of $ 545,000 , $ 391,000 , and $ 333,000 in 2017, 2016, and 2015, respectively. As of December 31, 2017, there was approximately $ 1,432,000 of unrecognized compensation cost related to the restricted stock awards that is expected to be recognized over a weighted-average period of 3. 8 years. There were 6,492 , 1,284 , and 2,570 shares of restricted stock that vested during 2017, 2016, and 2015, respectively.  The following table summarizes the activity for non-vested restricted stock:     2017 2016 2015  Shares Weighted Average Fair Value at Grant Date Shares Weighted Average Fair Value at Grant Date Shares Weighted Average Fair Value at Grant Date  Non-vested at beginning of period 28,465 $ 77.93 26,587 $ 78.00 23,668 $ 79.02  Granted 7,837 105.06 3,162 89.10 5,779 84.90  Vested (6,492) 85.58 (1,284) 106.92 (2,570) 103.65  Forfeited 0 0 - (290) 78.12  Non-vested at end of period 29,810 $ 83.40 28,465 $ 77.93 26,587 $ 78.00  

401(k) Plan

401(k) Plan	12 Months Ended
	Dec. 31, 2017
401(k) Plan [Abstract]
401(k) Plan	G. 401(K) PLAN: The Company sponsors a 401(k) retirement plan that covers substantially all non-union employees. Historically, the Company matched up to 50 % of the first 4 % of salary contributed by employees to the plan. This matching contribution was made with common stock. Starting in 2004, the Company began to match, in cash, an additional 50 % of the first 4 % of salary contributed by employees plus 3 % of total compensation for certain employees. Contributions made from treasury stock, including the Company's related cash dividends, totaled $ 1,194,000 in 2017, $ 1,225,000 in 2016, and $ 1,098,000 in 2015. In addition, the Company made cash contributions of $ 817,000 in 2017, $ 924,000 in 2016, and $ 941,000 in 2015 to the 401(k) Plan. The Company also contributed $ 369,000 , $ 358,000 , and $ 393,000 to the 401(k) retirement plan covering its union employees at the Amron Division of the AMTEC subsidiary during the years ended December 31, 2017, 2016, and 2015, respectively.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2017
Income Taxes [Abstract]
Income Taxes	H. INCOME TAXES:  The following table summarizes the provision for income taxes from continuing operations:     For Years Ended December 31 (in thousands)  2017 2016 2015  Current:  Federal $ 24,200 $ 14,391 $ 21,346  State 1,772 656 412  25,972 15,047 21,758  Deferred:  Federal (4,008) 5,799 (989)  State 7 561 (9)  (4,001) 6,360 (998)  Total tax provision $ 21,971 $ 21,407 $ 20,760  The effective rate of the provision for income taxes on earnings from continuing operations before income taxes as shown in the Consolidated Statements of Comprehensive Income differs from the applicable statutory federal income tax rate for the following reasons:     Percent of Pre-tax Income  2017 2016 2015  Statutory rate 35.0% 35.0% 35.0%  State tax, net of federal benefit 1.8% 1.2% 0.4%  Tax exempt interest and dividends (0.7%) (0.2%) 0.0%  Other (2.4%) (2.2%) (2.4%)  Effective rate 33.7% 33.8% 33.0%  Deferred tax assets and liabilities are recorded based on the differences between the tax basis of assets and liabilities and their carrying amounts for financial reporting purposes. The tax effects of the cumulative temporary differences resulting in deferred tax assets and liabilities are as follows at December 31:     (In thousands)  2017 2016  Deferred tax assets  Insurance (primarily product liability) $ 1,023 $ 1,594  Inventory 654 628  Vacation 596 893  Doubtful accounts 447 2,878  Environmental 275 320  Deferred compensation 253 338  Other 72 110  Total deferred tax assets 3,320 6,761   Deferred tax liabilities  Goodwill and other intangibles 1,112 1,698  Deferred revenue 875 -  Depreciation 338 8,067  Total deferred tax liabilities 2,325 9,765   Net deferred tax assets (liabilities) $ 995 $ (3,004)  In December 2017, the United States enacted changes to its tax laws, which included a reduction of the corporate income tax rate from 35% to 21% , beginning in 2018. The reduction in the tax rate resulted in a revaluation of the Company’s deferred tax assets and liabilities held at December 31, 2017, causing an increase in its 2017 income tax provision of $534,000 . The Company believes its accounting assessment for the impact of the enacted changes to the United States tax laws is complete.  The Company establishes tax reserves in accordance with FASB ASC 740, Income Taxes . As of December 31, 2017, the carrying amount of the Company’s gross unrecognized tax benefits was $ 459,000 which, if recognized, would affect the Company’s effective income tax rate.  The following is a reconciliation of the Company’s unrecognized tax benefits for the years ended December 31, 2017 and 2016:     (In thousands)  2017 2016  Balance at January 1 $ 288 $ 312  Increases for tax positions taken related to the current year 128 80  Increases for tax positions taken related to prior years 66 -  Decreases for tax positions taken related to prior years - (8)  Lapse of statute of limitations (23) -  Settlements - (96)  Balance at December 31 $ 459 $ 288  It is the Company’s practice to include tax related interest expense, interest income, and penalties in tax expense. For the year ended December 31, 2015, $482,000 of interest income associated with tax refunds is included in tax expense. During the years ended December 31, 2017, 2016 and 2015, the Company accrued approximately $17,000 , $ 15,000 and $ 13,000 in interest expense, respectively.  The Company is subject to U.S. federal income tax as well as income taxes of multiple states. During June of 2016, the Internal Revenue Service completed its audits of the tax years 2012 and 2013. As a result of the audits, the tax amortization period of certain intangible assets was shortened. During January of 2015, the state of Wisconsin completed its audits of the tax years 2009 through 2012. For all states in which it does business, the Company is subject to state audit statutes.

Commitments And Contingencies

Commitments And Contingencies	12 Months Ended
	Dec. 31, 2017
Commitments And Contingencies [Abstract]
Commitments And Contingencies	I. COMMITMENTS AND CONTINGENCIES: The Company is involved in largely routine litigation incidental to its business. Management believes the ultimate outcome of this litigation will not have a material effect on the Company's consolidated financial position, liquidity, or results of operations.

Concentrations

Concentrations	12 Months Ended
	Dec. 31, 2017
Concentrations [Abstract]
Concentrations	J. CONCENTRATIONS: In the Housewares/Small Appliance segment, one customer accounted for 10 %, 11% , and 12% of consolidated net sales for the years ended December 31, 2017, 2016, and 2015, respectively.  The Company sources most of its housewares/small appliances from vendors in the Orient and, as a result, risks deliveries from the Orient being disrupted by labor or supply problems at the vendors, or transportation delays. Should such problems or delays materialize, products might not be available in sufficient quantities during the prime selling period. The Company has made and will continue to make every reasonable effort to prevent these problems; however, there is no assurance that its efforts will be totally effective. As the majority of the Housewares/Small Appliance segment’s suppliers are located in China, periodic changes in the U.S. dollar and Chinese Renminbi (RMB) exchange rates do have an impact on the segment’s product costs. To date, any material impact from fluctuations in the exchange rate has been to the cost of products secured via purchase orders issued subsequent to the currency value change. Foreign transaction gains/losses are immaterial to the financial statements for all years presented.  The Company's Defense segment manufactures products primarily for the U.S. Department of Defense (DOD) and DOD prime contractors. As a consequence, this segment's future business essentially depends on the product needs and governmental funding of the DOD. During 2017, 2016, and 2015, substantially all of the work performed by this segment directly or indirectly for the DOD was performed on a fixed-price basis. Under fixed-price contracts, the price paid to the contractor is awarded based on competition at the outset of the contract and therefore, with the exception of limited escalation provisions on specific materials, is generally not subject to any adjustments reflecting the actual costs incurred by the contractor. In addition, in the case of the 40mm systems contract, key components and services are provided by third party subcontractors, several of which the segment is required to work with by government edict. Under the contract, the segment is responsible for the performance of those subcontractors, many of which it does not control. The Defense segment's contracts and subcontracts contain the customary provision permitting termination at any time for the convenience of the government, with payment for any work completed, associated profit, and inventory/work in process at the time of termination. Materials used in the Defense segment are available from multiple sources. As of December 31, 2017, 169 employees of Amron, or 1 7 % of the Company’s and its subsidiaries’ total workforce, are members of the United Steel Workers union. The most recent contract between Amron and the union is effective through February 29, 2020.

Environmental

Environmental	12 Months Ended
	Dec. 31, 2017
Environmental [Abstract]
Environmental	K. ENVIRONMENTAL In May 1986, the Company’s Eau Claire, Wisconsin site was placed on the United States Environmental Protection Agency’s National Priorities List under the Comprehensive Environmental Response, Compensation and Liability Act of 1980 because of hazardous waste deposited on the property. As of December 31, 1998, all remediation projects required at the Company's Eau Claire, Wisconsin site had been installed, were fully operational, and restoration activities had been completed. In addition, the Company is a member of a group of companies that may have disposed of waste into an Eau Claire area landfill in the 1960s and 1970s. After the landfill was closed, elevated volatile organic compounds were discovered in the groundwater. Remediation plans were established, and the costs associated with remediation and monitoring at the landfill are split evenly between the group and the City of Eau Claire. As of December 31, 2017, there does not appear to be exposure related to this site that would have a material impact on the operations or financial condition of the Company.  Based on factors known as of December 31, 2017, it is believed that the Company's existing environmental accrued liability reserve will be adequate to satisfy on-going remediation operations and monitoring activities both on- and off-site; however, should environmental agencies require additional studies, extended monitoring, or remediation projects, it is possible that the existing accrual could be inadequate. Management believes that in the absence of any unforeseen future developments, known environmental matters will not have any material effect on the results of operations or financial condition of the Company. The Company’s environmental accrued liability on an undiscounted basis was $ 1,150,000 and $ 1,010,000 as of December 31, 2017 and 2016, respectively, and is included in accrued liabilities on its balance sheet.  Expected future payments for environmental matters are as follows:     (In thousands)  Years Ending December 31:  2018 $ 250  2019 181  2020 162  2021 143  2022 124  Thereafter 290  $ 1,150  

Business Segments

Business Segments	12 Months Ended
	Dec. 31, 2017
Business Segments [Abstract]
Business Segments	L. BUSINESS SEGMENTS: The Company operates in two business segments. The Company identifies its segments based on the Company's organization structure, which is primarily by principal products. The principal product groups are Housewares/Small Appliance and Defense. Sales for both segments are primarily to customers in North America. On January 3, 2017, the Company and its wholly-owned subsidiary, Presto Absorbent Products, Inc. (“PAPI”), entered into an asset purchase agreement wherein substantially all PAPI assets were sold and certain liabilities were assigned to Drylock Technologies, LTD. As a result of this transaction, the Company classified its results of operations for all periods presented to reflect its Absorbent Products business as a discontinued operation and classified the assets and liabilities of its Absorbent Products business as held for sale. The operations of PAPI previously comprised the Company’s Absorbent Products segment. See Note P for further discussion.  The Housewares/Small Appliance segment designs, markets, and distributes housewares and small appliances. The housewares/small appliance products are sold primarily in the United States and Canada directly to retail outlets and also through independent distributors. As more fully described in Note J , the Company primarily sources its Housewares/Small Appliance products from non-affiliated suppliers located in the Orient. Sales are seasonal, with the normal peak sales period occurring in the fourth quarter of the year prior to the holiday season.  The Defense segment was started in 2001 with the acquisition of AMTEC Corporation, which manufactures precision mechanical and electromechanical assemblies for the U.S. Government and prime contractors. During 2005, and again during 2010, AMTEC Corporation was one of two prime contractors selected by the Army to supply all requirements for the 40mm family of practice and tactical ammunition cartridges for a period of five years. In 2016, AMTEC was awarded a one -year contract, and in 2017, it was awarded a third five -year contract as the sole prime contractor. AMTEC's manufacturing plant is located in Janesville, Wisconsin. Since the inception of the Defense segment in 2001, the Company has expanded the segment by making several strategic business acquisitions, and has additional facilities located in East Camden, Arkansas; Antigo, Wisconsin; Perry, Florida; and Clear Lake, South Dakota. During 2003, th e segment was expanded with the acquisition of Spectra Technologies, LLC of East Camden, Arkansas. This facility performs Load, Assemble, and Pack (LAP) operations on ordnance-related products for the U.S. Government and prime contractors. During 2006, the segment was expanded with the acquisition of certain assets of Amron, LLC of Antigo, Wisconsin, which primarily manufactures cartridge cases used in medium caliber (20-40mm) ammunition. In 2011 the segment was further augmented with the purchase of certain assets of ALS Technologies, Inc. of Bull Shoals, Arkansas, which manufactures less lethal ammunitions. The Company subsequently relocated this operation to Perry, Florida. During 2014, the Company continued the expansion of the Defense segment with the purchase of substantially all of the assets of Chemring Energetic Devices, Inc. located in Clear Lake, South Dakota, and all of the real property owned by Technical Ordnance Realty, LLC. The Clear Lake facility manufactures detonators, booster pellets, release cartridges, lead azide, and other military energetic devices and materials. The Defense segment’s collection of facilities enables the Company to deliver in virtually all aspects of the manufacture of medium caliber training and tactical rounds and less lethal ammunition. They include the fuze, the metal parts including the cartridge case, the load, assemble and pack of the final round, and the detonator.  In the following summary, operating profit represents earnings before other income, income taxes, and discontinued operations. 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 Appliance segment for all periods presented.     (in thousands)  Housewares / Small Appliance Defense Assets Held for Sale Total  Year ended December 31, 2017  External net sales $ 97,299 $ 236,334 $ 333,633  Gross profit 16,850 70,384 87,234  Operating profit 6,264 55,440 61,704  Total assets 242,815 162,869 $ 6,189 411,873  Depreciation and amortization 1,328 8,511 9,839  Capital expenditures 1,849 1,301 3,150   Year ended December 31, 2016  External net sales $ 108,128 $ 233,777 $ 341,905  Gross profit 20,963 64,699 85,662  Operating profit 9,677 52,835 62,512  Total assets 200,639 158,062 $ 58,893 417,594  Depreciation and amortization 1,045 7,830 8,875  Capital expenditures 1,351 3,473 4,824   Year ended December 31, 2015  External net sales $ 125,944 $ 229,705 $ 355,649  Gross profit 27,455 61,978 89,433  Operating profit 16,106 46,419 62,525  Total assets 184,385 143,189 $ 59,810 387,384  Depreciation and amortization 923 7,905 8,828  Capital expenditures 3,955 121 4,076  

Operating Leases

Operating Leases	12 Months Ended
	Dec. 31, 2017
Operating Leases [Abstract]
Operating Leases	M. OPERATING LEASES The Company leases office, manufacturing, and warehouse facilities and equipment under non-cancelable operating leases, many of which contain renewal options ranging from one to five years. Rent expense was approximately $ 994,000 , $ 1,040,000 , and $ 888,000 for the years ended December 31, 2017, 2016, and 2015, respectively. Future minimum annual rental payments required under operating leases are as follows:     Years ending December 31: (In thousands)  2018 $ 456  2019 71  2020 39  2021 11  $ 577

Interim Financial Information

Interim Financial Information	12 Months Ended
	Dec. 31, 2017
Interim Financial Information [Abstract]
Interim Financial Information	N. INTERIM FINANCIAL INFORMATION (UNAUDITED):  The following represents quarterly unaudited financial information for 2017 and 2016:     (In thousands, except per share data)  Per Share (basic and diluted)  Quarter Net Sales Gross Profit Earnings from Continuing Operations Earnings (Loss) from Discontinued Operations, net of tax Net Earnings Earnings from Continuing Operations Earnings (Loss) from Discontinued Operations, net of tax Net Earnings  2017  First $ 72,854 $ 20,126 $ 9,973 $ 8,182 $ 18,155 $ 1.43 $ 1.17 $ 2.60  Second 74,561 17,560 8,941 771 9,712 1.28 0.11 1.39  Third 70,614 18,892 8,338 (6) 8,332 1.19 - 1.19  Fourth 115,604 30,656 16,062 698 16,760 2.30 0.10 2.40  Total $ 333,633 $ 87,234 $ 43,314 $ 9,645 $ 52,959 $ 6.20 $ 1.38 $ 7.58   2016  First $ 65,942 $ 16,048 $ 6,510 $ 701 $ 7,211 $ 0.94 $ 0.10 $ 1.04  Second 69,516 17,167 7,936 338 8,274 1.14 0.05 1.19  Third 74,533 17,094 7,767 537 8,304 1.11 0.08 1.19  Fourth 131,914 35,353 19,702 1,073 20,775 2.82 0.15 2.97  Total $ 341,905 $ 85,662 $ 41,915 $ 2,649 $ 44,564 $ 6.01 $ 0.38 $ 6.39  As shown above, fourth quarter sales are significantly impacted by the holiday driven seasonality of the Housewares/Small Appliance segment. This segment orders/purchases inventory during the first three quarters to meet the sales demand of the fourth quarter. The Defense segment is typically non-seasonal. As discussed in Note P, the Company sold its Absorbent Products business on January 3, 2017, and the gain on divestiture was recorded primarily in the first quarter of 2017.

Line Of Credit And Commercial L

Line Of Credit And Commercial Letters Of Credit	12 Months Ended
	Dec. 31, 2017
Line of Credit And Commercial Letters Of Credit [Abstract]
Line Of Credit And Commercial Letters Of Credit	O. LINE OF CREDIT AND COMMERCIAL LETTERS OF CREDIT The Company maintains an unsecured line of credit for short term operating cash needs. The line of credit is renewed each year at the end of the third quarter. As of December 31, 2017 and 2016, the line of credit limit was set at $ 5,000,000 , with $ 0 outstanding on both dates. The interest rate on the line of credit is reset monthly to the London Inter-Bank Offered Rate (LIBOR) plus one half of one percent. In addition, the Company had issued commercial letters of credit totaling $ 1,197,000 and $ 1,803 ,000 as of December 31, 2017 and 2016, respectively, related to performance on certain customer contracts. As of December 31, 2017, the entire balance of the issued letters of credit had not been drawn upon.

Discontinued Operations

Discontinued Operations	12 Months Ended
	Dec. 31, 2017
Discontinued Operations [Abstract]
Discontinued Operations	P. DISCONTINUED OPERATIONS On January 3, 2017, the Company and its wholly-owned subsidiary, Presto Absorbent Products, Inc. (“PAPI”), entered into an asset purchase agreement wherein substantially all PAPI assets were sold and certain liabilities were assigned to Drylock Technologies, LTD . (“Drylock”) in exchange for $68,448,000 . The proceeds amount differs from the amount previously disclosed because of the customary post-closing adjustments that were finalized during the second quarter of 2017, totaling $1,448,000 . The asset purchase agreement also provides for additional proceeds of $4,000,000 upon the sale of certain delayed assets, consisting of machinery and equipment that were the subject of an involuntary conversion, at a future date. As a result of this transaction, the Company classified its results of operations for all periods presented to reflect its Absorbent Products business as a discontinued operation and classified the assets and liabilities of its Absorbent Products business as held for sale. The Company’s pre-tax gain on the sale of $11,413,000 , net of one-time transaction costs, was recorded in the first six months of 2017 within earnings from discontinued operations. This amount differs from the gain previously reported as a result of the post-closing adjustments mentioned above that were finalized in the second quarter of 2017.  The following table summarizes the results of the Absorbent Products business within discontinued operations for each of the periods presented:      For the years ended December 31,  (in thousands) 2017 2016 2015  Net sales $ 421 $ 76,555 $ 72,041  Cost of sales (675) (70,848) (71,897)  Selling and general expenses (25) (2,618) (2,275)  Gain on divestiture, net 11,413 - -  Other income (expense) 2,753 976 (1)  Earnings (loss) from discontinued operations before provision for income taxes 13,887 4,065 (2,132)  Provision for (benefit from) income taxes from discontinued operations 4,242 1,416 (466)  Earnings (loss) from discontinued operations, net of tax $ 9,645 $ 2,649 $ (1,666)  The following table summarizes the major classes of assets and liabilities of the Absorbent Products business held for sale for each of the periods presented:       Year Ended December 31,  (in thousands) 2017 2016  Accounts receivable, net $ 2,529 $ 13,781  Inventories - 10,747  Property, plant and equipment, net 3,660 34,365  Assets held for sale $ 6,189 $ 58,893   Accounts payable $ 210 $ 5,245  Accrued liabilities - 1,008  Liabilities held for sale $ 210 $ 6,253  The Consolidated Statements of Cash Flows do not present the cash flows from discontinued operations separately from cash flows from continuing operations. Cash provided by (used in) operating activities from discontinued operations was $(5,447,000) , $4,477,000 , and $4,733,000 for the years ended December 31, 2017, 2016, and 2015, respectively. Cash provided by (used in) investing activities related to discontinued operations was $61,891,000 , $(1,139,000) , and $(2,385,000) for the years ended December 31, 2017, 2016, and 2015, respectively.  In connection with the asset purchase agreement discussed above, the Company entered into a 10 -year lease agreement with Drylock for a portion of its manufacturing and warehouse facilities. The lease agreement provided for total annual payments of $1,288,000 initially. It also provides Drylock an option for early termination of the lease after the initial five years and an option to modify the space subject to the agreement. Drylock elected the latter option as of June 30, 2017. The agreement provide s as well for adjustments to the rental payments based on certain price indices. The Company also entered into a transition services agreement with Drylock which terminated at the end of 2017. The amounts received from Drylock for transition services and rental income are recorded in Other Income on the Consolidated Statements of Comprehensive Income.

Other

Other	12 Months Ended
	Dec. 31, 2017
Other [Abstract]
Other	Q. OTHER The Company has entered into a licensing agreement with another firm that holds intellectual property on the Rusoh® self-service/self-reloadable fire extinguisher . Under the agreement, the Company has advanced the entity funds and has agreed to pay royalties to the entity on the commercial sales of the developed products. As of December 31, 2017 and 2016, notes receivable plus accrued interest of $ 6,750,000 and $6,534,000 , respectively, related to the license agreement were classified as Notes Receivable on the Company’s Consolidated Balance Sheet s . The fire extinguisher was introduced t o the commercial market in 2017, and the Company believes that collectability of the notes receivable is reasonably assured.

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2017
Subsequent Events [Abstract]
Subsequent Events	R. SUBSEQUENT EVENTS The Company evaluates events that occur through the filing date and discloses any material events or transactions.  On February 9, 2018, the Company’s Board of Directors announced a regular dividend of $1.00 per share, plus an extra dividend of $5.00 . On March 15, 2018, a payment of $41,989,000 was made to the shareholders of record as of March 1, 2018 .  On February 26, 2018, AMTEC Corporation received a $58,200,000 option award under year two (Government Fiscal Year 2018) of AMTEC’s current five -year 40mm systems contract with the Department of the Army. The option award is primarily for M430A1 cartridges, with deliveries scheduled to begin in early 2020. 

Valuation And Qualifying Accoun

Valuation And Qualifying Accounts	12 Months Ended
	Dec. 31, 2017
Schedule II - Valuation and Qualifying Accounts [Abstract]
Schedule II - Valuation And Qualifying Accounts	   (In thousands)  Column A Column B Column C Column C Column D Column E  Description Balance at Beginning of Period Additions - Charged to Costs and Expenses (A) Additions - Charged to Other Accounts (B) Deductions (C) Balance at End of Period   Deducted from assets:  Allowance for doubtful accounts:  Year ended December 31, 2017 $ 1,816 $ 70 $ - $ 17 $ 1,869  Year ended December 31, 2016 $ 1,796 $ 1 $ - $ (19) $ 1,816  Year ended December 31, 2015 $ 1,319 $ 516 $ - $ 39 $ 1,796   Notes:  (A) Amounts charged to selling and general expenses.  (B) Amounts charged to other accounts.  (C) Principally bad debts written off, net of recoveries. 

Summary Of Significant Accoun27

Summary Of Significant Accounting Policies (Policy)	12 Months Ended
	Dec. 31, 2017
Summary Of Significant Accounting Policies [Abstract]
Use Of Estimates In The Preparation Of Financial Statements	(1) USE OF ESTIMATES IN THE PREPARATION OF FINANCIAL STATEMENTS: In preparation of the Company's Consolidated Financial Statements in conformity with accounting principles generally accepted in the United States, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities and related revenues and expenses. Actual results could differ from the estimates used by management.
Basis Of Presentation	(2) BASIS OF PRESENTATION: The Consolidated Financial Statements include the accounts of National Presto Industries, Inc. and its subsidiaries, all of which are wholly-owned. All material intercompany accounts and transactions are eliminated. For a further discussion of the Company's business and the segments in which it operates, please refer to Note L .  On January 3, 2017, the Company and its wholly-owned subsidiary, Presto Absorbent Products, Inc. (“PAPI”), entered into an asset purchase agreement wherein substantially all PAPI assets were sold and certain liabilities were assigned to Drylock Technologies, LTD. (“Drylock”) in exchange for $68,448,000 . The proceeds amount differs from the amount previously disclosed because of the customary post-closing adjustments that were finalized during the second quarter of 2017, totaling $1,448,000 . The asset purchase agreement also provides for additional proceeds of $4,000,000 upon the sale of certain delayed assets, consisting of machinery and equipment that were the subject of an involuntary conversion, at a future date. As a result of this transaction, the Company classified its results of operations for all periods presented to reflect its Absorbent Products business as a discontinued operation and classified the assets and liabilities of its Absorbent Products business as held for sale. See Note P for further discussion.
Reclassifications	(3) RECLASSIFICATIONS: In addition to the reclassifications mentioned in Note A(2) above, 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 .
Fair Value Of Financial Instruments	(4) FAIR VALUE OF FINANCIAL INSTRUMENTS: The Company utilizes the methods of determining 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. The fair value of marketable securities are discussed in Note A(5).
Cash Cash Equivalents And Marketable Securities	(5) CASH, CASH EQUIVALENTS AND MARKETABLE SECURITIES:  Cash and Cash Equivalents: 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's cash management policy provides for its bank disbursement accounts to be reimbursed on a daily basis. Checks issued but not presented to the bank for payment of $ 3,157,000 and $ 5,883,000 at December 31, 2017 and 2016, respectively, are included as reductions of cash and cash equivalents or bank overdrafts in accounts payable, as appropriate.  Marketable Securities: 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 December 31, 2017 and 2016, 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 December 31 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 2017 and 2016.      (In thousands)  MARKETABLE SECURITIES   Amortized Cost Fair Value Gross Unrealized Gains Gross Unrealized Losses  December 31, 2017  Tax-exempt Municipal Bonds $ 30,103 $ 29,994 $ - $ 109  Variable Rate Demand Notes 114,258 114,258 - -  Total Marketable Securities $ 144,361 $ 144,252 $ - $ 109   December 31, 2016  Tax-exempt Municipal Bonds $ 38,223 $ 38,151 $ 1 $ 73  Variable Rate Demand Notes 46,306 46,306 - -  Total Marketable Securities $ 84,529 $ 84,457 $ 1 $ 73  Proceeds from sales and maturities of marketable securities totaled $ 132,752,000 in 2017, $ 33,863,000 in 2016, and $ 10,306,000 in 2015. There were no realized gross gains or losses related to sales of marketable securities during the years ended December 31, 2017, 2016 and 2015. Net unrealized losses included in other comprehensive income were $ 37,000 , $ 57,000 and $ 9,000 before taxes for the years ended December 31, 2017, 2016, and 2015, 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 December 31, 2017 are as follows: $ 25,741,000 within one year; $ 16,226,000 beyond one year to five years; $ 12,175,000 beyond five years to ten years, and $ 90,110,000 beyond ten years. All of the instruments in the beyond five year ranges are variable rate demand notes which, as noted above, 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.
Accounts Receivable	(6) ACCOUNTS RECEIVABLE: The Company's accounts receivable is related to sales of products. Credit is extended based on prior experience with the customer and evaluation of customers' financial condition. Accounts receivable are primarily due within 25 to 60 days. The Company does not accrue interest on past due accounts receivable. Receivables are written off only after all collection attempts have failed and are based on individual credit evaluation and the specific circumstances of the customer. The allowance for doubtful accounts represents an estimate of amounts considered uncollectible and is determined based on the Company's historical collection experience, adverse situations that may affect the customer's ability to pay, and prevailing economic conditions.
Inventories	(7) INVENTORIES: Housewares/Small Appliance segment inventories are stated at the lower of cost or market with cost being determined principally on the last-in, first-out (LIFO) method. Defense segment inventories are stated at the lower of cost and net realizable value determined principally on the first-in, first-out (FIFO) method. Inventoried costs relating to contracts in progress are stated at actual production costs, including factory overhead, initial tooling, and other related costs incurred to date, reduced by amounts associated with recognized sales, utilizing a standard costing type method. The Company evaluates inventories to determine if there are any excess or obsolete inventories on hand.
Property, Plant And Equipment	(8) PROPERTY, PLANT AND EQUIPMENT: Property, plant and equipment are stated at cost. Straight-line depreciation is provided in amounts sufficient to charge the costs of depreciable assets to operations over their service lives which are estimated at 15 to 40 years for buildings, 3 to 10 years for machinery and equipment, and 15 to 20 years for land improvements. The Company reviews long-lived assets consisting principally of property, plant, and equipment, for impairment when material events and changes in circumstances indicate the carrying value may not be recoverable. Approximately $374,000 and $764,000 of construction in progress in the Company’s Defense segment is presented on the Consolidated Balance Sheet as Buildings and Machinery and Equipment, respectively, at December 31, 2017. The construction in progress is expected to be completed by the fourth quarter of 2018. Approximately $3,461,000 of construction in progress in the Company’s Defense segment is presented on the Consolidated Balance Sheet as Buildings at December 31, 2016.
Goodwill	(9) GOODWILL: The Company recognizes the excess cost of acquired entities over the net amount assigned to the fair value of assets acquired and liabilities assumed as goodwill. Goodwill is tested for impairment on an annual basis at the start of the fourth quarter and between annual tests whenever an impairment is indicated, such as the occurrence of an event that would more likely than not reduce the fair value of the reporting unit below its carrying amount. Impairment losses are recognized whenever the implied fair value of goodwill is less than its carrying value. No goodwill impairments were recognized during 2017, 2016, or 2015.  The Company's goodwill as of December 31, 2017 and 201 6 was $ 11,485,000 , rel ating entirely to its Defense segment, which had no cumulative impairment charges at December 31, 2017.
Intangible Assets	(10) INTANGIBLE ASSETS: Intangible assets primarily consist of the value of an acquired government sales contract and the value of trademarks, trade secrets, and consulting agreements. The intangible assets are all attributable to the Defense segment. The government sales contract intangible asset is amortized based on units fulfilled under the applicable contract, while the other intangible assets are amortized on a straight-line basis that approximates economic use, over periods ranging from 2 to 10 years. As of December 31, 2017, the Company determined that the trade secrets, which were acquired during 2017, had an indefinite life.  Intangible assets are evaluated for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable. Th ere were no impairments of intangible assets recognized during 2017, 2016, or 2015.  The gross carrying amounts of the government sales contract and other intangible assets subject to amortization were $21,690,000 and $211,000 , respectively, totaling $21,901,000 at December 31, 2017 and 2016. Accumulated amortization was $ 19,570,000 and $ 16,940,000 at December 31, 2017 and 2016, respectively. Amortization expense was $ 2,630,000 , $ 721,000 , and $ 5,173,000 during the years ended December 31, 2017, 2016, and 2015, respectively. Estimated amortization expense as of December 31, 2017 for the five succeeding years is shown in the following table:      Years ending December 31: (In thousands)  2018 $ 2,171  2019 21  2020 21  2021 21  2022 21 
Other Assets	(11) OTHER ASSETS: Other assets includes prepayments that are made from time to time by the Company for certain materials used in the manufacturing process in the Housewares/Small Appliance segment. The Company expects to utilize the prepayments and related materials over an estimated period of up to two years. As of December 31, 2017 and 2016, $11,567,000 and $10,974,000 of such prepayments, respectively, remained unused and outstanding. At December 31, 2017 and 2016, $5,930,000 and $6,330,000 of these amounts, respectively, are included in Other Current Assets, representing the Company’s best estimate of the expected utilization of the prepayments and related materials during the twelve-month periods following those dates
Revenue Recognition	(12) REVENUE RECOGNITION: For all of its segments, the Company recognizes revenue when product is shipped or title passes pursuant to customers' orders, the price is fixed and collection is reasonably assu red. For the Housewares/Small A ppliance segment, the Company provides for its 60 -day over-the-counter return privilege and warranties at the time of shipment. Net sales for this segment are calculated by deducting early payment discounts and cooperative advertising allowances from gross sales. The Company records cooperative advertising allowances when revenue is recognized. See Note A(13) for a description of the Company’s policy for sales returns.
Sales & Returns	(13) SALES & RETURNS: Sales are recorded net of estimated discounts and returns. The latter pertain primarily to warranty returns, returns of seasonal items, and returns of those newly introduced products sold with a return privilege within the Housewares/Small Appliance segment. The calculation of warranty returns is based in large part on historical data, while seasonal and new product returns are primarily developed using customer provided information.
Shipping And Handling Costs	(14) SHIPPING AND HANDLING COSTS: In accordance with FASB ASC 605-45, Revenue Recognition , the Company includes shipping and handling revenues in net sales and shipping costs in cost of sales.
Advertising	(15) ADVERTISING: The Company's policy is to expense advertising as incurred and include it in selling and general expenses. Advertising expense was $ 174,000 , $ 369,000 , and $ 98,000 in 2017, 2016, and 2015, respectively.
Product Warranty	(16) PRODUCT WARRANTY: The Company’s Housewares/Small Appliance segment’s products are generally warranted to the original owner to be free from defects in material and workmanship for a period of 1 to 12 years from date of purchase. The Company allows a 60 -day over-the-counter initial return privilege through cooperating dealers. The Company services its products through a corporate service repair operation. The Company estimates its product warranty liability based on historical percentages which have remained relatively consistent over the years.  The product warranty liability is included in accounts payable on the balance sheet. The following table shows the changes in product warranty liability for the period:     (In thousands)  Year Ended December 31  2017 2016  Beginning balance January 1 $ 543 $ 487  Accruals during the period 268 549  Charges / payments made under the warranties (428) (493)  Balance December 31 $ 383 $ 543 
Stock-Based Compensation	(17) STOCK-BASED COMPENSATION: The Company accounts for stock-based compensation in accordance with ASC 718, Compensation — Stock Compensation . Under the fair value recognition provisions of ASC 718, stock-based compensation cost is measured at the grant date based on the fair value of the award and is recognized as expense ratably over the requisite service period, net of estimated forfeitures. As more fully described in Note F , the Company awards non-vested restricted stock to employees and executive officers.
Income Taxes	(18) INCOME TAXES: Deferred income tax assets and liabilities are recognized for the differences between the financial and income tax reporting bases of assets and liabilities based on enacted tax rates and laws. The deferred income tax provision or benefit generally reflects the net change in deferred income tax assets and liabilities during the year. The current income tax provision reflects the tax consequences of revenues and expenses currently taxable or deductible on various income tax returns for the year reported. Income tax contingencies are accounted for in accordance with FASB ASC 740, Income Taxes . See Note H for summaries of the provision, the effective tax rates, and the tax effects of the cumulative temporary differences resulting in deferred tax assets and liabilities. In December 2017, the United States enacted changes to its tax laws, which included a reduction of the corporate income tax rate from 35% to 21% , beginning in 2018. The reduction in the tax rate resulted in a revaluation of the Company’s deferred tax assets and liabilities held at December 31, 2017 .
Recently Issued Accounting Pronouncements	(19) RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS: In January 2017, the FASB issued ASU No. 2017-04, Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment , which eliminates the performance of Step 2 from the goodwill impairment test. In performing its annual or interim impairment testing, an entity will instead compare the fair value of the reporting unit with its carrying amount and recognize any impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value. Additionally, an entity should consider income tax effects from any tax deductible goodwill on the carrying amount of the reporting unit when measuring the goodwill impairment loss. The standard is effective for fiscal years beginning after December 15, 2019. Early adoption is permitted for interim or annual impairment tests performed on testing dates after January 1, 2017. The Company does not expect the adoption of ASU 2017-04 to have a material impact on its consolidated financial statements.  In January 2017, the FASB issued ASU No. 2017-01, Business Combinations (Topic 805): Clarifying the Definition of a Business , which provides guidance in evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets or businesses. The definition of a business affects many areas of accounting, including acquisitions, disposals, goodwill, and consolidation. The guidance is effective for public companies for fiscal years beginning after December 15, 2017, including interim periods within those periods, with early adoption permitted under certain circumstances. The Company does not expect the adoption of ASU 2017-01 to have a material impact on its consolidated financial statements.  In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments , which addresses diversity in how certain cash receipts and cash payments are presented and classified in the statement of cash flows. ASU 2016-15 provides guidance on the following eight specific cash flow issues: debt prepayment or debt extinguishment costs; settlement of zero-coupon debt instruments or other debt instruments with coupon interest rates that are insignificant in relation to the effective interest rate of the borrowing; contingent consideration payments made after a business combination; proceeds from the settlement of insurance claims; proceeds from the settlement of corporate-owned life insurance policies, including bank-owned life insurance policies; distributions received from equity method investees; beneficial interests in securitization transactions; and separately identifiable cash flows and application of the predominance principle. ASU 2016-15 is effective for public business entities for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. Early adoption is permitted, including adoption in an interim period. The Company does not expect the adoption of ASU 2016-15 to have a material impact on its consolidated financial statements.  In June 2016, the FASB issued ASU No. 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments . ASU 2016-13 provides guidance for estimating credit losses on certain types of financial instruments, including trade receivables, by introducing an approach based on expected losses. The expected loss approach will require entities to incorporate considerations of historical information, current information and reasonable and supportable forecasts. ASU 2016-13 also amends the accounting for credit losses on available-for-sale debt securities and purchased financial assets with credit deterioration. The guidance is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. The guidance requires a modified retrospective transition method and early adoption is permitted. The Company does not expect the adoption of ASU 2016-13 to have a material impact on its consolidated financial statements.  In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) , which establishes a right-of-use (ROU) model that requires a lessee to record a ROU asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement. The new standard is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. A modified retrospective transition approach is required. The Company is in the early stages of evaluating the impact of the adoption of ASU 2016-02 on its consolidated financial statements.  In January 2016, the FASB issued ASU 2016-01, Financial Instruments-Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities , which provides guidance for the recognition, measurement, presentation, and disclosure of financial assets and liabilities. The guidance is effective for reporting periods (interim and annual) beginning after December 15, 2017. The Company does not expect the adoption of ASU 2016-01 to have a material effect on its consolidated financial statements.  In May 2014, the FASB issued 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, 2017. The Company will adopt ASU 2014-09 as of January 1, 2018 utilizing the modified retrospective transition method. The Company evaluated the impact of the standard on its two business segments, Housewares/Small Appliance and Defense. Representative samples of existing revenue contracts for each material revenue stream were considered and evaluated. That evaluation entailed a review of the “five-step” model established by ASU 2014-09 to identify the cont r act, performance obligations, the transaction price, the process for allocating the transaction price to performance obligations, the timing and pattern of revenue recognition, and additional disclosures that may be required. The Company has determined that there are no material differences resulting from the adoption of ASU 2014-09. As required by ASU 2014-09, the Company will present expanded disclosures related to revenues and contracts with customers in the first quarter of 2018, the assessment of which is ongoing. The Company believes its business processes, systems, and controls are appropriate to support recognition and disclosure under ASU 2014-09.  Other pronouncements issued but not effective until after December 31, 2017, are not expected to have a material impact on the Company's consolidated financial statements.

Summary Of Significant Accoun28

Summary Of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2017
Summary Of Significant Accounting Policies [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  December 31, 2017  Tax-exempt Municipal Bonds $ 30,103 $ 29,994 $ - $ 109  Variable Rate Demand Notes 114,258 114,258 - -  Total Marketable Securities $ 144,361 $ 144,252 $ - $ 109   December 31, 2016  Tax-exempt Municipal Bonds $ 38,223 $ 38,151 $ 1 $ 73  Variable Rate Demand Notes 46,306 46,306 - -  Total Marketable Securities $ 84,529 $ 84,457 $ 1 $ 73 
Schedule Of Estimated Future Amortization Expense	   Years ending December 31: (In thousands)  2018 $ 2,171  2019 21  2020 21  2021 21  2022 21 
Schedule Of Changes In Product Warranty	   (In thousands)  Year Ended December 31  2017 2016  Beginning balance January 1 $ 543 $ 487  Accruals during the period 268 549  Charges / payments made under the warranties (428) (493)  Balance December 31 $ 383 $ 543 

Inventories (Tables)

Inventories (Tables)	12 Months Ended
	Dec. 31, 2017
Inventories [Abstract]
Schedule Of Potential Impact Of LIFO Valuation to FIFO Valuation	   Increase (Decrease) – (In thousands, except per share data)  Year Cost of Sales Net Earnings Earnings Per Share  2017 $ (1,250) $ 830 $ 0.12  2016 $ 443 $ (292) $ (0.04)  2015 $ 763 $ (505) $ (0.07) 

Stock-Based Compensation (Table

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2017
Stock-Based Compensation [Abstract]
Schedule Of Activity For Non-Vested Restricted Sock	   2017 2016 2015  Shares Weighted Average Fair Value at Grant Date Shares Weighted Average Fair Value at Grant Date Shares Weighted Average Fair Value at Grant Date  Non-vested at beginning of period 28,465 $ 77.93 26,587 $ 78.00 23,668 $ 79.02  Granted 7,837 105.06 3,162 89.10 5,779 84.90  Vested (6,492) 85.58 (1,284) 106.92 (2,570) 103.65  Forfeited 0 0 - (290) 78.12  Non-vested at end of period 29,810 $ 83.40 28,465 $ 77.93 26,587 $ 78.00 

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2017
Income Taxes [Abstract]
Schedule Of Provision For Income Taxes	   For Years Ended December 31 (in thousands)  2017 2016 2015  Current:  Federal $ 24,200 $ 14,391 $ 21,346  State 1,772 656 412  25,972 15,047 21,758  Deferred:  Federal (4,008) 5,799 (989)  State 7 561 (9)  (4,001) 6,360 (998)  Total tax provision $ 21,971 $ 21,407 $ 20,760 
Reconciliation Of Statutory Rate to Effective Rate	   Percent of Pre-tax Income  2017 2016 2015  Statutory rate 35.0% 35.0% 35.0%  State tax, net of federal benefit 1.8% 1.2% 0.4%  Tax exempt interest and dividends (0.7%) (0.2%) 0.0%  Other (2.4%) (2.2%) (2.4%)  Effective rate 33.7% 33.8% 33.0% 
Schedule Of Deferred Tax Assets And Liabilities	   (In thousands)  2017 2016  Deferred tax assets  Insurance (primarily product liability) $ 1,023 $ 1,594  Inventory 654 628  Vacation 596 893  Doubtful accounts 447 2,878  Environmental 275 320  Deferred compensation 253 338  Other 72 110  Total deferred tax assets 3,320 6,761   Deferred tax liabilities  Goodwill and other intangibles 1,112 1,698  Deferred revenue 875 -  Depreciation 338 8,067  Total deferred tax liabilities 2,325 9,765   Net deferred tax assets (liabilities) $ 995 $ (3,004) 
Reconciliation Of Unrecognized Tax Benefits	   (In thousands)  2017 2016  Balance at January 1 $ 288 $ 312  Increases for tax positions taken related to the current year 128 80  Increases for tax positions taken related to prior years 66 -  Decreases for tax positions taken related to prior years - (8)  Lapse of statute of limitations (23) -  Settlements - (96)  Balance at December 31 $ 459 $ 288 

Environmental (Tables)

Environmental (Tables)	12 Months Ended
	Dec. 31, 2017
Environmental [Abstract]
Schedule Of Expected Future Payments Of Environmental Matters [Table Text Block]	   (In thousands)  Years Ending December 31:  2018 $ 250  2019 181  2020 162  2021 143  2022 124  Thereafter 290  $ 1,150 

Business Segments (Tables)

Business Segments (Tables)	12 Months Ended
	Dec. 31, 2017
Business Segments [Abstract]
Summary Of Business Segments Information	   (in thousands)  Housewares / Small Appliance Defense Assets Held for Sale Total  Year ended December 31, 2017  External net sales $ 97,299 $ 236,334 $ 333,633  Gross profit 16,850 70,384 87,234  Operating profit 6,264 55,440 61,704  Total assets 242,815 162,869 $ 6,189 411,873  Depreciation and amortization 1,328 8,511 9,839  Capital expenditures 1,849 1,301 3,150   Year ended December 31, 2016  External net sales $ 108,128 $ 233,777 $ 341,905  Gross profit 20,963 64,699 85,662  Operating profit 9,677 52,835 62,512  Total assets 200,639 158,062 $ 58,893 417,594  Depreciation and amortization 1,045 7,830 8,875  Capital expenditures 1,351 3,473 4,824   Year ended December 31, 2015  External net sales $ 125,944 $ 229,705 $ 355,649  Gross profit 27,455 61,978 89,433  Operating profit 16,106 46,419 62,525  Total assets 184,385 143,189 $ 59,810 387,384  Depreciation and amortization 923 7,905 8,828  Capital expenditures 3,955 121 4,076 

Operating Leases (Tables)

Operating Leases (Tables)	12 Months Ended
	Dec. 31, 2017
Operating Leases [Abstract]
Schedule Of Future Annual Rental Payments	   Years ending December 31: (In thousands)  2018 $ 456  2019 71  2020 39  2021 11  $ 577 

Interim Financial Information (

Interim Financial Information (Tables)	12 Months Ended
	Dec. 31, 2017
Interim Financial Information [Abstract]
Schedule Of Quarterly Financial Information	   (In thousands, except per share data)  Per Share (basic and diluted)  Quarter Net Sales Gross Profit Earnings from Continuing Operations Earnings (Loss) from Discontinued Operations, net of tax Net Earnings Earnings from Continuing Operations Earnings (Loss) from Discontinued Operations, net of tax Net Earnings  2017  First $ 72,854 $ 20,126 $ 9,973 $ 8,182 $ 18,155 $ 1.43 $ 1.17 $ 2.60  Second 74,561 17,560 8,941 771 9,712 1.28 0.11 1.39  Third 70,614 18,892 8,338 (6) 8,332 1.19 - 1.19  Fourth 115,604 30,656 16,062 698 16,760 2.30 0.10 2.40  Total $ 333,633 $ 87,234 $ 43,314 $ 9,645 $ 52,959 $ 6.20 $ 1.38 $ 7.58   2016  First $ 65,942 $ 16,048 $ 6,510 $ 701 $ 7,211 $ 0.94 $ 0.10 $ 1.04  Second 69,516 17,167 7,936 338 8,274 1.14 0.05 1.19  Third 74,533 17,094 7,767 537 8,304 1.11 0.08 1.19  Fourth 131,914 35,353 19,702 1,073 20,775 2.82 0.15 2.97  Total $ 341,905 $ 85,662 $ 41,915 $ 2,649 $ 44,564 $ 6.01 $ 0.38 $ 6.39 

Discontinued Operations (Tables

Discontinued Operations (Tables)	12 Months Ended
	Dec. 31, 2017
Discontinued Operations [Abstract]
Results of discontinued operations and schedule of major classes of assets and liabilities	The following table summarizes the results of the Absorbent Products business within discontinued operations for each of the periods presented:      For the years ended December 31,  (in thousands) 2017 2016 2015  Net sales $ 421 $ 76,555 $ 72,041  Cost of sales (675) (70,848) (71,897)  Selling and general expenses (25) (2,618) (2,275)  Gain on divestiture, net 11,413 - -  Other income (expense) 2,753 976 (1)  Earnings (loss) from discontinued operations before provision for income taxes 13,887 4,065 (2,132)  Provision for (benefit from) income taxes from discontinued operations 4,242 1,416 (466)  Earnings (loss) from discontinued operations, net of tax $ 9,645 $ 2,649 $ (1,666)  The following table summarizes the major classes of assets and liabilities of the Absorbent Products business held for sale for each of the periods presented:       Year Ended December 31,  (in thousands) 2017 2016  Accounts receivable, net $ 2,529 $ 13,781  Inventories - 10,747  Property, plant and equipment, net 3,660 34,365  Assets held for sale $ 6,189 $ 58,893   Accounts payable $ 210 $ 5,245  Accrued liabilities - 1,008  Liabilities held for sale $ 210 $ 6,253 

Summary Of Significant Accoun37

Summary Of Significant Accounting Policies (Narrative) (Details) - USD ($)	6 Months Ended	12 Months Ended
	Jul. 02, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Significant Accounting Policies [Line Items]
Proceeds from sale	$ 68,448,000
Post-closing adjustments	$ 1,448,000
Checks outstanding			$ 3,157,000	$ 5,883,000
Transfers into Level 2			0	0
Transfers out of Level 2			0	0
Proceeds from sale and maturity of available for sale securities			132,752,000	33,863,000	$ 10,306,000
Net unrealized losses included OCI			37,000	57,000	9,000
Contractual maturities of marketable securities, within one year			25,741,000
Contractual maturities of marketable securities, beyond one year to five years			16,226,000
Contractual maturities of marketable securities, beyond five years to ten years			12,175,000
Contractual maturities of marketable securities, beyond ten years			90,110,000
Goodwill			11,485,000	11,485,000
Goodwill, Cumulative Impairment Charges			0
Impairments of Intangible Assets			0	0	0
Gross carrying amount of intangibles			21,901,000
Accumulated amortization of intangibles			19,570,000	16,940,000
Amortization expense			2,630,000	721,000	5,173,000
Advertising expense			$ 174,000	$ 369,000	$ 98,000
Statutory rate			35.00%	35.00%	35.00%
Scenario, Forecast [Member]
Significant Accounting Policies [Line Items]
Proceeds from sale		$ 4,000,000
Scenario, Plan [Member]
Significant Accounting Policies [Line Items]
Statutory rate		21.00%
Defense [Member]
Significant Accounting Policies [Line Items]
Goodwill			$ 11,485,000	$ 11,485,000
Housewares/ Small Appliances [Member]
Significant Accounting Policies [Line Items]
Expected prepayment utilization period			2 years
Materials Prepayments			$ 11,567,000	10,974,000
Standard product warranty coverage period			60 days
Sales returns coverage period			60 days
Buildings [Member] | Defense [Member]
Significant Accounting Policies [Line Items]
Construction in progress			$ 374,000	3,461,000
Machinery and Equipment [Member] | Defense [Member]
Significant Accounting Policies [Line Items]
Construction in progress			$ 764,000
Minimum [Member]
Significant Accounting Policies [Line Items]
Accounts receivable, collection period			25 days
Economic use period for intangibles			2 years
Minimum [Member] | Housewares/ Small Appliances [Member]
Significant Accounting Policies [Line Items]
Standard product warranty coverage period			1 year
Minimum [Member] | Buildings [Member]
Significant Accounting Policies [Line Items]
Useful life			15 years
Minimum [Member] | Machinery and Equipment [Member]
Significant Accounting Policies [Line Items]
Useful life			3 years
Minimum [Member] | Land Improvements [Member]
Significant Accounting Policies [Line Items]
Useful life			15 years
Maximum [Member]
Significant Accounting Policies [Line Items]
Accounts receivable, collection period			60 days
Economic use period for intangibles			10 years
Maximum [Member] | Housewares/ Small Appliances [Member]
Significant Accounting Policies [Line Items]
Standard product warranty coverage period			12 years
Maximum [Member] | Buildings [Member]
Significant Accounting Policies [Line Items]
Useful life			40 years
Maximum [Member] | Machinery and Equipment [Member]
Significant Accounting Policies [Line Items]
Useful life			10 years
Maximum [Member] | Land Improvements [Member]
Significant Accounting Policies [Line Items]
Useful life			20 years
Maximum [Member] | Variable Rate Demand Notes [Member]
Significant Accounting Policies [Line Items]
Number of days to tender securites			7 days
Government Sales Contract Intangible Assets [Member]
Significant Accounting Policies [Line Items]
Gross carrying amount of intangibles			$ 21,690,000
Other Intangible Assets [Member]
Significant Accounting Policies [Line Items]
Gross carrying amount of intangibles			211,000
Other Current Assets [Member] | Housewares/ Small Appliances [Member]
Significant Accounting Policies [Line Items]
Materials Prepayments			$ 5,930,000	$ 6,330,000
Subsequent Event [Member] | Scenario, Forecast [Member]
Significant Accounting Policies [Line Items]
Proceeds from sale		$ 4,000,000

Summary Of Significant Accoun38

Summary Of Significant Accounting Policies (Summary Of The Amortized Costs And Fair Values Of Marketable Securities) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Schedule of Available-for-sale Securities [Line Items]
MARKETABLE SECURITIES, Amortized Cost	$ 144,361	$ 84,529
MARKETABLE SECURITIES, Fair Value	144,252	84,457
MARKETABLE SECURITIES, Gross Unrealized Gains		1
MARKETABLE SECURITIES, Gross Unrealized Losses	109	73
Tax-Exempt Municipal Bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
MARKETABLE SECURITIES, Amortized Cost	30,103	38,223
MARKETABLE SECURITIES, Fair Value	29,994	38,151
MARKETABLE SECURITIES, Gross Unrealized Gains		1
MARKETABLE SECURITIES, Gross Unrealized Losses	109	73
Variable Rate Demand Notes [Member]
Schedule of Available-for-sale Securities [Line Items]
MARKETABLE SECURITIES, Amortized Cost	114,258	46,306
MARKETABLE SECURITIES, Fair Value	$ 114,258	$ 46,306

Summary Of Significant Accoun39

Summary Of Significant Accounting Policies (Schedule Of Estimated Future Amortization Expense) (Details) $ in Thousands	Dec. 31, 2017USD ($)
Summary Of Significant Accounting Policies [Abstract]
2,018	$ 2,171
2,019	21
2,020	21
2,021	21
2,022	$ 21

Summary Of Significant Accoun40

Summary Of Significant Accounting Policies (Schedule Of Changes In Product Warranty Liability) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Summary Of Significant Accounting Policies [Abstract]
Beginning balance January 1	$ 543	$ 487
Accruals during the period	268	549
Changes/payments made under the warranties	(428)	(493)
Balance December 31	$ 383	$ 543

Inventories (Narrative) (Detail

Inventories (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Inventory [Line Items]
Liquidation of LIFO layer	$ 64,000	$ 2,451,000	$ 0
FIFO inventory amount	78,420,000	70,372,000
Finished goods	1,223,000	169,000
Work in process	72,219,000	66,528,000
Raw materials and supplies	4,978,000	3,675,000
Housewares/ Small Appliances [Member]
Inventory [Line Items]
LIFO inventory amount	26,019,000	25,031,000
Inventory valuation, difference below FIFO	$ 3,835,000	$ 2,585,000

Inventories (Schedule Of Potent

Inventories (Schedule Of Potential Impact Of LIFO Valuation to FIFO Valuation) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Inventories [Abstract]
Cost of Sales	$ (1,250)	$ 443	$ 763
Net Earnings	$ 830	$ (292)	$ (505)
Earnings Per Share	$ 0.12	$ (0.04)	$ (0.07)

Accrued Liabilities (Narrative)

Accrued Liabilities (Narrative) (Details) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Accrued Liabilities [Abstract]
Accrued product liability	$ 4,965,000	$ 5,172,000
Accrued payroll liability	5,827,000	4,948,000
Environmental accrued liability	1,150,000	1,010,000
Other accrued liabilities	$ 1,150,000	$ 1,114,000

Treasury Stock (Narrative) (Det

Treasury Stock (Narrative) (Details) - shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Treasury Stock [Abstract]
Shares approved for repurchase	503,373
Shares Acquired From Participants For Share Based Compensation Tax Obligations	1,139	0	88

Stock-Based Compensation (Narra

Stock-Based Compensation (Narrative) (Details)	12 Months Ended
	Dec. 31, 2017USD ($)employeeshares	Dec. 31, 2016USD ($)shares	Dec. 31, 2015USD ($)shares	May 16, 2017shares	May 18, 2010shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized				150,000	50,000
Number of plan participants | employee	22
Pre-tax compensation expense | $	$ 545,000	$ 391,000	$ 333,000
Unrecognized compensation cost | $	$ 1,432,000
Unrecognized compensation cost, recognition period	3 years 9 months 18 days
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting year	2,020
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting year	2,023
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted	7,837	3,162	5,779
Shares vested	6,492	1,284	2,570

Stock-Based Compensation (Sched

Stock-Based Compensation (Schedule Of Activity For Non-Vested Restricted Stock) (Details) - Restricted Stock [Member] - $ / shares	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested at beginning of period, Shares	28,465	26,587	23,668
Granted, Shares	7,837	3,162	5,779
Vested, Shares	(6,492)	(1,284)	(2,570)
Forfeited, Shares	0	0	(290)
Non-vested at end of period, Shares	29,810	28,465	26,587
Non-vested at beginning of period, Weighted Average Fair Value at Grant Date	$ 77.93	$ 78	$ 79.02
Granted, Weighted Average Fair Value at Grant Date	105.06	89.10	84.90
Vested, Weighted Average Fair Value at Grant Date	85.58	106.92	103.65
Forfeited, Weighted Average Fair Value at Grant Date			78.12
Non-vested at end of period, Weighted Average Fair Value at Grant Date	$ 83.40	$ 77.93	$ 78

401(k) Plan (Narrative) (Detail

401(k) Plan (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Employer Contribution Common Stock [Member]
Defined Contribution Plan Disclosure [Line Items]
Percentage of specified salary amount matched by employer	50.00%
Percentage of employee salary eligible for matching	4.00%
Employer contributions	$ 1,194,000	$ 1,225,000	$ 1,098,000
Employer Contribution Cash [Member]
Defined Contribution Plan Disclosure [Line Items]
Percentage of specified salary amount matched by employer	50.00%
Percentage of employee salary eligible for matching	4.00%
Employer contributions	$ 817,000	924,000	941,000
Certain Employees [Member]
Defined Contribution Plan Disclosure [Line Items]
Percentage of employee salary eligible for matching	3.00%
Defined Benefit Plan, Union Employees [Member]
Defined Contribution Plan Disclosure [Line Items]
Employer contributions	$ 369,000	$ 358,000	$ 393,000

Income Taxes (Narrative) (Detai

Income Taxes (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statutory rate		35.00%	35.00%	35.00%
Increase in income tax provison from revaluation of net deferred tax assets		$ 534,000
Unrecognized Tax Benefits		459,000	$ 288,000	$ 312,000
Gross unrecognized tax benefits		459,000	288,000	312,000
Interest Income on Tax Refund				482,000
Accrued interest included in tax expense		17,000	15,000	13,000
Income Tax Examination, Penalties and Interest Accrued		$ 17,000	$ 15,000	$ 13,000
Scenario, Plan [Member]
Statutory rate	21.00%

Income Taxes (Schedule Of Provi

Income Taxes (Schedule Of Provision For Income Taxes) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Taxes [Abstract]
Current, Federal	$ 24,200	$ 14,391	$ 21,346
Current, State	1,772	656	412
Current provision for income taxes	25,972	15,047	21,758
Deferred, Federal	(4,008)	5,799	(989)
Deferred, State	7	561	(9)
Deferred provision for income taxes	(4,001)	6,360	(998)
Total tax provision	$ 21,971	$ 21,407	$ 20,760

Income Taxes (Reconciliation Of

Income Taxes (Reconciliation Of Statutory Rate to Effective Rate) (Details)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Taxes [Abstract]
Statutory rate	35.00%	35.00%	35.00%
State tax, net of federal benefit	1.80%	1.20%	0.40%
Tax exempt interest and dividends	(0.70%)	(0.20%)	(0.00%)
Other	(2.40%)	(2.20%)	(2.40%)
Effective Rate	33.70%	33.80%	33.00%

Income Taxes (Schedule Of Defer

Income Taxes (Schedule Of Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Income Taxes [Abstract]
Insurance (primarily product liability)	$ 1,023	$ 1,594
Inventory	654	628
Vacation	596	893
Doubtful accounts	447	2,878
Environmental	275	320
Deferred compensation	253	338
Other	72	110
Total deferred tax assets	3,320	6,761
Goodwill and other intangibles	1,112	1,698
Deferred revenue	875
Depreciation	338	8,067
Total deferred tax liabilities	2,325	9,765
Net deferred tax assets	$ 995
Net deferred tax (liabilities)		$ (3,004)

Income Taxes (Reconciliation 52

Income Taxes (Reconciliation Of Unrecognized Tax Benefits) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Income Taxes [Abstract]
Balance at January 1	$ 288	$ 312
Additions for tax positions taken related to the current year	128	80
Additions for tax positions taken related to prior years	66
Reductions for tax positions taken related to prior years		(8)
Lapse of statue of limitations	(23)
Settlements		(96)
Balance at December 31	$ 459	$ 288

Concentrations (Narrative) (Det

Concentrations (Narrative) (Details)	12 Months Ended
	Dec. 31, 2017employeecustomer	Dec. 31, 2016customer	Dec. 31, 2015customer
Concentration Risk [Line Items]
Number of entity empolyees, union members | employee	169
Percentage of entity employees, union members	17.00%
Housewares/ Small Appliances [Member]
Concentration Risk [Line Items]
Major customers contributing to net sales | customer	1	1	1
Housewares/ Small Appliances [Member] | Net Sales [Member]
Concentration Risk [Line Items]
Major customer, percentage	10.00%	11.00%	12.00%

Environmental (Narrative) (Deta

Environmental (Narrative) (Details) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Environmental [Abstract]
Environmental accrued liability	$ 1,150,000	$ 1,010,000

Environmental (Schedule Of Expe

Environmental (Schedule Of Expected Future Payments Of Environmental Matters) (Details) $ in Thousands	Dec. 31, 2017USD ($)
Environmental [Abstract]
2,018	$ 250
2,019	181
2,020	162
2,021	143
2,022	124
Thereafter	290
Future payments for environmental matters	$ 1,150

Business Segments (Narrative) (

Business Segments (Narrative) (Details)	12 Months Ended
	Dec. 31, 2017segment	Dec. 31, 2016	Dec. 31, 2010contract
Business Segments [Abstract]
Operating segments | segment	2
Government contract, number of contractors | contract			2
Supply commitment, commitment term	5 years	1 year	5 years

Business Segments (Schedule Of

Business Segments (Schedule Of Segment Information) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Oct. 01, 2017	Jul. 02, 2017	Apr. 02, 2017	Dec. 31, 2016	Oct. 02, 2016	Jul. 03, 2016	Apr. 03, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
External net sales	$ 115,604	$ 70,614	$ 74,561	$ 72,854	$ 131,914	$ 74,533	$ 69,516	$ 65,942	$ 333,633	$ 341,905	$ 355,649
Gross profit	30,656	$ 18,892	$ 17,560	$ 20,126	35,353	$ 17,094	$ 17,167	$ 16,048	87,234	85,662	89,433
Operating profit (loss)									61,704	62,512	62,525
Total assets	411,873				417,594				411,873	417,594	387,384
Depreciation and amortization									9,839	8,875	8,828
Capital expenditures									3,150	4,824	4,076
Housewares/ Small Appliances [Member]
Segment Reporting Information [Line Items]
External net sales									97,299	108,128	125,944
Gross profit									16,850	20,963	27,455
Operating profit (loss)									6,264	9,677	16,106
Total assets	242,815				200,639				242,815	200,639	184,385
Depreciation and amortization									1,328	1,045	923
Capital expenditures									1,849	1,351	3,955
Defense [Member]
Segment Reporting Information [Line Items]
External net sales									236,334	233,777	229,705
Gross profit									70,384	64,699	61,978
Operating profit (loss)									55,440	52,835	46,419
Total assets	162,869				158,062				162,869	158,062	143,189
Depreciation and amortization									8,511	7,830	7,905
Capital expenditures									1,301	3,473	121
Discontinued Operations Held-for-sale [Member]
Segment Reporting Information [Line Items]
Total assets	$ 6,189				$ 58,893				$ 6,189	$ 58,893	$ 59,810

Operating Leases (Narrative) (D

Operating Leases (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Rent Expense	$ 994,000	$ 1,040,000	$ 888,000
Minimum [Member]
Operating leases, renewal option term	1 year
Maximum [Member]
Operating leases, renewal option term	5 years

Operating Leases (Schedule Of F

Operating Leases (Schedule Of Future Annual Rental Payments) (Details) $ in Thousands	Dec. 31, 2017USD ($)
Operating Leases [Abstract]
2,018	$ 456
2,019	71
2,020	39
2,021	11
Future minimum operating lease payments	$ 577

Interim Financial Information60

Interim Financial Information (Schedule Of Quarterly Financial Information) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Oct. 01, 2017	Jul. 02, 2017	Apr. 02, 2017	Dec. 31, 2016	Oct. 02, 2016	Jul. 03, 2016	Apr. 03, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Interim Financial Information [Abstract]
Net Sales	$ 115,604	$ 70,614	$ 74,561	$ 72,854	$ 131,914	$ 74,533	$ 69,516	$ 65,942	$ 333,633	$ 341,905	$ 355,649
Gross Profit	30,656	18,892	17,560	20,126	35,353	17,094	17,167	16,048	87,234	85,662	89,433
Earnings from continuing operations	16,062	8,338	8,941	9,973	19,702	7,767	7,936	6,510	43,314	41,915	42,162
Earnings (loss) from discontinued operations, net of tax	698	(6)	771	8,182	1,073	537	338	701	9,645	2,649	(1,666)
Net earnings	$ 16,760	$ 8,332	$ 9,712	$ 18,155	$ 20,775	$ 8,304	$ 8,274	$ 7,211	$ 52,959	$ 44,564	$ 40,496
Earnings from continuing operations per share, basic and diluted	$ 2.30	$ 1.19	$ 1.28	$ 1.43	$ 2.82	$ 1.11	$ 1.14	$ 0.94	$ 6.20	$ 6.01	$ 6.07
Earnings (loss) from discontinued operations per share, net of tax, basic and diluted	0.10		0.11	1.17	0.15	0.08	0.05	0.10	1.38	0.38	(0.24)
Net earnings per share	$ 2.40	$ 1.19	$ 1.39	$ 2.60	$ 2.97	$ 1.19	$ 1.19	$ 1.04	$ 7.58	$ 6.39	$ 5.83

Line Of Credit And Commercial61

Line Of Credit And Commercial Letters Of Credit (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Line of Credit Facility [Line Items]
Percentage over LIBOR	0.50%
Letters of credit	$ 1,197,000	$ 1,803,000
Domestic Line of Credit [Member]
Line of Credit Facility [Line Items]
Line of credit limit	5,000,000	5,000,000
Line of credit outstanding	$ 0	$ 0

Discontinued Operations (Narrat

Discontinued Operations (Narrative) (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jul. 02, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale	$ 68,448
Post-closing adjustments	1,448
Gain on divestiture of business, net	$ 11,413		$ 11,413
Cash provided by (used in) operating activities of discontinued operations			(5,447)	$ 4,477	$ 4,733
Cash provided by (used in) investing activities related to discontinued operations			$ 61,891	$ (1,139)	$ (2,385)
Term of lease			10 years
Early termination term			5 years
Scenario, Forecast [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale		$ 4,000
Discontinued Operations Held-for-sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on divestiture of business, net			$ 11,413
Total annual lease payments			$ 1,288
Subsequent Event [Member] | Scenario, Forecast [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale		$ 4,000

Discontinued Operations (Summar

Discontinued Operations (Summary Of Results) (Details) - USD ($) $ in Thousands	3 Months Ended								6 Months Ended	12 Months Ended
	Dec. 31, 2017	Oct. 01, 2017	Jul. 02, 2017	Apr. 02, 2017	Dec. 31, 2016	Oct. 02, 2016	Jul. 03, 2016	Apr. 03, 2016	Jul. 02, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales	$ 115,604	$ 70,614	$ 74,561	$ 72,854	$ 131,914	$ 74,533	$ 69,516	$ 65,942		$ 333,633	$ 341,905	$ 355,649
Cost of sales										(246,399)	(256,243)	(266,216)
Selling and general expenses										(22,900)	(22,429)	(21,735)
Gain on divestiture of business, net									$ 11,413	11,413
Other income										3,581	810	397
Earnings (loss) from discontinued operations, net of tax	$ 698	$ (6)	$ 771	$ 8,182	$ 1,073	$ 537	$ 338	$ 701		9,645	2,649	(1,666)
Discontinued Operations Held-for-sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales										421	76,555	72,041
Cost of sales										(675)	(70,848)	(71,897)
Selling and general expenses										(25)	(2,618)	(2,275)
Gain on divestiture of business, net										11,413
Other income										2,753	976	(1)
Earnings (loss) from discontinued operations before provision for income taxes										13,887	4,065	(2,132)
Provision for (benefit from) income taxes from discontinued operations										4,242	1,416	(466)
Earnings (loss) from discontinued operations, net of tax										$ 9,645	$ 2,649	$ (1,666)

Discontinued Operations (Summ64

Discontinued Operations (Summary of Major Classes of Assets and Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Accounts receivable, net	$ 65,220	$ 67,285
Inventories	104,439	95,403
Property, Plant and equipment, net	45,168	49,475
Accounts payable	28,445	39,584
Accrued liabilities	13,092	12,244
Discontinued Operations Held-for-sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Accounts receivable, net	2,529	13,781
Inventories		10,747
Property, Plant and equipment, net	3,660	34,365
Assets held for sale	6,189	58,893
Accounts payable	210	5,245
Accrued liabilities		1,008
Liabilities held for sale	$ 210	$ 6,253

Other (Narrative) (Details)

Other (Narrative) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Other [Abstract]
Note receivable, related to license agreement	$ 6,750	$ 6,534

Subsequent Event (Narrative) (D

Subsequent Event (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	2 Months Ended		12 Months Ended
	Feb. 09, 2018	Mar. 15, 2018	Feb. 26, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2010
Subsequent Event [Line Items]
Dividends paid				$ 38,405	$ 35,161	$ 28,114
Supply commitment, commitment term				5 years	1 year		5 years
Regular dividends per share paid				$ 1	$ 1	$ 1
Extra dividends per share paid				$ 4.50	$ 4.05	$ 3.05
Subsequent Event [Member]
Subsequent Event [Line Items]
Regular dividends per share declared	$ 1
Extra dividends per share declared	$ 5
Dividends paid		$ 41,989
Option Award on Existing Contract			$ 58,200

Valuation And Qualifying Acco67

Valuation And Qualifying Accounts (Details) - Allowance for Doubtful Accounts [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	$ 1,816	$ 1,796	$ 1,319
Additions, Charged to Costs and Expenses	70	1	516
Deductions	17	(19)	39
Balance at End of Period	$ 1,869	$ 1,816	$ 1,796