Business Segments (Schedule Of Segment Information) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2018	Sep. 30, 2018	Jul. 01, 2018	Apr. 01, 2018	Dec. 31, 2017	Oct. 01, 2017	Jul. 02, 2017	Apr. 02, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
External net sales	$ 85,611	$ 81,653	$ 79,227	$ 76,826	$ 115,604	$ 70,614	$ 74,561	$ 72,854	$ 323,317	$ 333,633	$ 341,905
Gross profit	20,464	$ 15,697	$ 19,445	$ 20,277	30,656	$ 18,892	$ 17,560	$ 20,126	75,883	87,234	85,662
Operating profit									47,902	61,704	62,512
Total assets	413,618				411,873				413,618	411,873	417,594
Depreciation and amortization									6,219	9,839	8,875
Capital expenditures									8,686	3,150	4,824
Housewares/ Small Appliances [Member]
Segment Reporting Information [Line Items]
External net sales									93,771	97,299	108,128
Gross profit									14,904	16,850	20,963
Operating profit									2,991	6,264	9,677
Total assets	280,607				242,815				280,607	242,815	200,639
Depreciation and amortization									1,384	1,328	1,045
Capital expenditures									8,010	1,849	1,351
Defense [Member]
Segment Reporting Information [Line Items]
External net sales									229,546	236,334	233,777
Gross profit									60,979	70,384	64,699
Operating profit									44,911	55,440	52,835
Total assets	132,636				162,869				132,636	162,869	158,062
Depreciation and amortization									4,835	8,511	7,830
Capital expenditures									676	1,301	3,473
Discontinued Operations Held-for-sale [Member]
Segment Reporting Information [Line Items]
Total assets	$ 375				$ 6,189				$ 375	$ 6,189	$ 58,893