Business Segments (Schedule Of Segment Information) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Oct. 01, 2017	Sep. 30, 2018	Oct. 01, 2017	Dec. 31, 2017
Segment Reporting Information [Line Items]
External net sales	$ 81,653	$ 70,614	$ 237,706	$ 218,029
Gross profit	15,697	18,892	55,419	56,578
Operating profit (loss)	6,842	11,684	32,621	37,820
Total assets	404,372	393,638	404,372	393,638	$ 411,873
Depreciation and amortization	1,027	2,778	5,245	7,013
Capital expenditures	1,820	364	7,110	2,876
Housewares/ Small Appliances [Member]
Segment Reporting Information [Line Items]
External net sales	22,714	20,935	56,749	57,883
Gross profit	3,040	3,148	7,187	7,845
Operating profit (loss)	56	299	(1,117)	(103)
Total assets	276,907	219,811	276,907	219,811
Depreciation and amortization	343	344	1,011	955
Capital expenditures	1,781	579	6,693	1,502
Defense [Member]
Segment Reporting Information [Line Items]
External net sales	58,939	49,679	180,957	160,146
Gross profit	12,657	15,744	48,232	48,733
Operating profit (loss)	6,786	11,385	33,738	37,923
Total assets	126,937	169,762	126,937	169,762
Depreciation and amortization	684	2,434	4,234	6,058
Capital expenditures	39	(215)	417	1,374
Discontinued Operations Held-for-sale [Member]
Segment Reporting Information [Line Items]
Total assets	$ 528	$ 4,065	$ 528	$ 4,065