SEGMENT INFORMATION (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 25, 2021	Dec. 26, 2020
Operating revenues	$ 36,410	$ 64,449
Operating loss	(13,476)	(383)
Depreciation and amortization	561	449
Tangible assets	41,330	29,699
Goodwill	720	720
Other intangible assets	19	19
Total assets	42,069	30,438
Property and equipment acquired	240	428
Commercial [Member]
Operating revenues	27,986	54,368
Operating loss	(8,599)	3,570
Depreciation and amortization	394	320
Tangible assets	12,516	11,111
Goodwill	0	0
Other intangible assets	19	19
Total assets	12,535	11,130
Property and equipment acquired	58	148
Corporate
Operating revenues	0	0
Operating loss	(4,909)	(4,838)
Depreciation and amortization	153	117
Tangible assets	25,746	16,157
Goodwill	0	0
Other intangible assets	0	0
Total assets	25,746	16,157
Property and equipment acquired	182	268
Government [Member]
Operating revenues	8,424	10,081
Operating loss	32	885
Depreciation and amortization	14	12
Tangible assets	3,068	2,431
Goodwill	720	720
Other intangible assets	0	0
Total assets	3,788	3,151
Property and equipment acquired	$ 0	$ 12