Net Sales by Major Market (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 26, 2022	Feb. 27, 2021
Domestic Direct	$ 3,852	$ 2,340
Domestic Distribution	2,078	1,510
International	136	200
	6,066	4,050
Military [Member]
Domestic Direct	2,505	1,423
Domestic Distribution	1,793	1,027
International	71	63
	4,369	2,513
Space [Member]
Domestic Direct	603	219
Domestic Distribution	146	364
International	22	127
	771	710
Medical [Member]
Domestic Direct	555	550
Domestic Distribution
International
	555	550
Commercial [Member]
Domestic Direct	189	148
Domestic Distribution	139	119
International	43	10
	$ 371	$ 277