Note D - Business Segments - Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 29, 2024	Oct. 01, 2023	Sep. 29, 2024	Oct. 01, 2023	Dec. 31, 2023
External net sales	$ 91,823	$ 83,141	$ 253,536	$ 242,496
Gross profit (loss)	17,223	15,399	45,775	46,799
Operating profit (loss)	9,223	7,068	21,861	21,738
Total assets	428,902	415,968	428,902	415,968	$ 440,536
Depreciation and amortization	1,192	1,193	3,877	4,144
Capital expenditures	2,826	867	3,873	1,693
Housewares/Small Appliances [Member] | Operating Segments [Member]
External net sales	24,816	21,545	64,750	61,533
Gross profit (loss)	4,997	3,920	11,566	12,814
Operating profit (loss)	1,760	760	2,366	2,957
Total assets	118,773	182,220	118,773	182,220
Depreciation and amortization	239	262	1,490	769
Capital expenditures	35	216	114	444
Defense [Member] | Operating Segments [Member]
External net sales	66,794	61,311	187,960	179,874
Gross profit (loss)	13,447	12,740	38,150	36,992
Operating profit (loss)	9,812	9,085	27,165	26,720
Total assets	303,614	225,636	303,614	225,636
Depreciation and amortization	912	842	2,267	3,060
Capital expenditures	2,765	554	3,710	1,074
Safety [Member] | Operating Segments [Member]
External net sales	213	285	826	1,089
Gross profit (loss)	(1,221)	(1,261)	(3,941)	(3,007)
Operating profit (loss)	(2,349)	(2,777)	(7,670)	(7,939)
Total assets	6,515	8,112	6,515	8,112
Depreciation and amortization	41	89	120	315
Capital expenditures	$ 26	$ 97	$ 49	$ 175