SEGMENT INFORMATION (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 25, 2021
Operating revenues	$ 40,189	$ 36,410
Operating loss	(18,327)	(13,476)
Depreciation and amortization	933	561
Tangible assets	29,303	41,330
Goodwill	720	720
Other intangible assets	2,800
Other intangible assets	0	19
Total assets	30,023	42,069
Property and equipment acquired	580	240
Property and equipment acquired	602	240
Government [Member]
Operating revenues	8,093	8,424
Operating loss	935	32
Depreciation and amortization	14	14
Tangible assets	1,312	3,068
Goodwill	720	720
Other intangible assets	0	0
Total assets	2,032	3,788
Capital expenditures	23	0
Commercial [Member]
Operating revenues	32,096	27,986
Operating loss	(14,495)	(8,599)
Depreciation and amortization	731	394
Tangible assets	19,526	12,516
Goodwill	0	0
Other intangible assets	0	19
Total assets	19,526	12,535
Capital expenditures	348	58
Corporate
Operating revenues	0	0
Operating loss	(4,767)	(4,909)
Depreciation and amortization	188	153
Tangible assets	8,465	25,746
Goodwill	0	0
Other intangible assets	0	0
Total assets	8,465	25,746
Property and equipment acquired	$ 209	$ 182