ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES
Accounting fees	$ 70,000	$ 80,000
Interest payable	25,000	22,000
Accounts receivable credit balances	18,000	5,000
Sales tax payable	185,000	164,000
Deferred compensation	79,000	138,000
Customer deposits	52,000	167,000
Other current liabilities	38,000	44,000
Accrued expenses and other current liabilities	$ 467,000	$ 620,000