Business Segments (Summary Of Business Segment Information) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jul. 01, 2018	Jun. 30, 2019	Jul. 01, 2018	Dec. 31, 2018
Segment Reporting Information [Line Items]
External net sales	$ 71,745	$ 79,227	$ 135,595	$ 156,053
Gross profit	14,676	19,445	27,168	39,722
Operating profit (loss)	8,637	12,398	14,685	25,779
Total assets	384,558	389,536	384,558	389,536	$ 413,618
Depreciation and amortization	951	2,421	1,899	4,218
Capital expenditures	716	3,500	3,224	5,290
Housewares/ Small Appliances [Member]
Segment Reporting Information [Line Items]
External net sales	19,148	17,978	38,857	34,035
Gross profit	2,055	2,248	4,239	4,147
Operating profit (loss)	(1,333)	(298)	(2,862)	(1,173)
Total assets	240,759	247,352	240,759	247,352
Depreciation and amortization	370	332	736	668
Capital expenditures	(101)	3,203	129	4,912
Defense Products [Member]
Segment Reporting Information [Line Items]
External net sales	52,597	61,249	96,738	122,018
Gross profit	12,621	17,197	22,929	35,575
Operating profit (loss)	9,970	12,696	17,547	26,952
Total assets	143,799	141,656	143,799	141,656
Depreciation and amortization	581	2,089	1,163	3,550
Capital expenditures	$ 817	297	$ 3,095	378
Assets Held-For-Sale [Member]
Segment Reporting Information [Line Items]
Total assets		$ 528		$ 528