Business Segments (Schedule Of Segment Information) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 03, 2016	Jul. 05, 2015	Jul. 03, 2016	Jul. 05, 2015	Dec. 31, 2015
Segment Reporting Information [Line Items]
External net sales	$ 87,985	$ 102,371	$ 174,482	$ 203,370
Gross profit (loss)	18,416	20,433	36,197	41,312
Operating profit (loss)	12,064	13,763	22,774	26,087
Total assets	376,487	358,956	376,487	358,956	$ 387,384
Depreciation and amortization	3,486	3,432	6,465	8,311
Capital expenditures	1,950	1,302	2,579	2,855
Housewares/ Small Appliances [Member]
Segment Reporting Information [Line Items]
External net sales	19,280	21,963	40,676	45,256
Gross profit (loss)	3,588	4,413	8,194	9,253
Operating profit (loss)	1,183	1,932	2,881	3,958
Total assets	161,310	152,300	161,310	152,300
Depreciation and amortization	257	234	498	469
Capital expenditures	453	847	892	979
Defense Products [Member]
Segment Reporting Information [Line Items]
External net sales	50,236	62,646	94,782	122,324
Gross profit (loss)	13,898	16,465	25,659	32,553
Operating profit (loss)	10,854	13,102	19,293	24,176
Total assets	155,032	142,780	155,032	142,780
Depreciation and amortization	1,776	1,582	3,066	4,617
Capital expenditures	1,090	90	1,123	124
Absorbent Products [Member]
Segment Reporting Information [Line Items]
External net sales	18,469	17,762	39,024	35,790
Gross profit (loss)	930	(445)	2,344	(494)
Operating profit (loss)	27	(1,271)	600	(2,047)
Total assets	60,145	63,876	60,145	63,876
Depreciation and amortization	1,453	1,616	2,901	3,225
Capital expenditures	$ 407	$ 365	$ 564	$ 1,752