SEGMENT INFORMATION (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 30, 2024	Apr. 01, 2023	Dec. 30, 2023
Revenue	$ 6,528	$ 13,193
Gross profit (loss)	$ 464	$ (1,822)
Gross profit margin	7.10%	(13.80%)
SG&A	$ 2,017	$ 4,416
Operating profit (loss)	(1,553)	(6,238)
Other income, net	222	3
Interest expense, net	(43)	(72)
Tax expense	(22)	(22)
Net loss	(1,396)	(6,329)
Total assets	16,039		$ 18,787
Government [Member]
Revenue	2,139	1,358
Gross profit (loss)	$ 114	$ (220)
Gross profit margin	5.30%	(16.20%)
SG&A	$ 106	$ 136
Operating profit (loss)	8	(356)
Total assets	4,221		3,780
Commercial [Member]
Revenue	4,389	11,835
Gross profit (loss)	$ 350	$ (1,602)
Gross profit margin	8.00%	(13.50%)
SG&A	$ 720	$ 2,746
Operating profit (loss)	(370)	(4,348)
Total assets	8,799		11,740
Corporate
Revenue	0	0
Gross profit (loss)	0	0
SG&A	1,191	1,534
Operating profit (loss)	(1,191)	$ (1,534)
Total assets	$ 3,019		$ 3,267