FEDERAL AND STATE INCOME TAXES (Details 2) - USD ($)	Dec. 25, 2021	Dec. 26, 2020
FEDERAL AND STATE INCOME TAXES
Federal and state net operating loss carryforward	$ 9,503,000	$ 7,036,000
Tax credit carryforwards	1,977,000	1,971,000
Allowance for uncollectible accounts	380,000	93,000
Accruals not yet deductible for tax purposes	488,000	613,000
Goodwill	236,000	364,000
Depreciation	0	3,000
Lease payable	992,000	390,000
Total noncurrent deferred tax assets	13,576,000	10,470,000
Less: valuation allowance	(12,419,000)	(10,016,000)
Depreciation	49	0
Total noncurrent deferred tax assets, net	1,157,000	454,000
Other	(126,000)	(70,000)
Right to use asset	(982,000)	(384,000)
Total noncurrent deferred tax liabilities	(1,157,000)	(454,000)
Net deferred tax assets/deferred tax liabilities	$ 0	$ 0