Business Segments (Schedule Of Segment Activity) (Details) (USD $)	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jul. 01, 2012	Apr. 01, 2012	Dec. 31, 2011	Oct. 02, 2011	Jul. 03, 2011	Apr. 03, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Segment Reporting Information [Line Items]
External net sales	$ 141,790,000	$ 116,813,000	$ 117,114,000	$ 96,773,000	$ 119,006,000	$ 104,861,000	$ 98,268,000	$ 108,886,000	$ 472,490,000	$ 431,021,000	$ 479,000,000
Gross profit	32,010,000	22,907,000	19,594,000	20,352,000	27,483,000	23,657,000	20,665,000	21,954,000	94,863,000	93,759,000	113,574,000
Operating profit									59,719,000	73,737,000	97,251,000
Total assets	353,912,000				411,641,000				353,912,000	411,641,000	415,133,000
Depreciation and amortization									11,185,000	9,037,000	8,637,000
Capital expenditures									13,584,000	15,003,000	17,972,000
Housewares/ Small Appliances [Member]
Segment Reporting Information [Line Items]
External net sales									145,023,000	130,852,000	157,474,000
Gross profit									27,858,000	27,016,000	37,032,000
Operating profit									15,714,000	16,716,000	27,558,000
Total assets	194,214,000				238,534,000				194,214,000	238,534,000	256,945,000
Depreciation and amortization									1,088,000	993,000	926,000
Capital expenditures									1,138,000	3,249,000	1,117,000
Defense Products [Member]
Segment Reporting Information [Line Items]
External net sales									244,998,000	202,372,000	240,762,000
Gross profit									64,095,000	62,006,000	68,071,000
Operating profit									55,071,000	55,049,000	61,443,000
Total assets	102,406,000				109,137,000				102,406,000	109,137,000	106,487,000
Depreciation and amortization									4,203,000	3,469,000	3,650,000
Capital expenditures									2,681,000	1,558,000	3,473,000
Absorbent Products [Member]
Segment Reporting Information [Line Items]
External net sales									82,469,000	97,797,000	80,764,000
Gross profit									2,910,000	4,737,000	8,471,000
Operating profit									(11,066,000)	1,972,000	8,250,000
Total assets	57,292,000				63,970,000				57,292,000	63,970,000	51,701,000
Depreciation and amortization									5,894,000	4,575,000	4,061,000
Capital expenditures									$ 9,765,000	$ 10,196,000	$ 13,382,000