Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES
Net Loss	$ (28,000)	$ (152,000)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities
Depreciation of property and equipment	665,000	713,000
Non-cash employee compensation expense	66,000	157,000
Non-cash directors compensation	54,000	52,000
Non-cash other income recognized	(89,000)	(104,000)
Non-cash interest expense		31,000
Amortization of Right-of-Use Asset	131,000	118,000
Deferred gain on sale of real estate	(10,000)	(10,000)
Bad debt recovery	(118,000)	(78,000)
Amortization of deferred financing costs	15,000	36,000
Decrease (Increase) in Operating Assets:
Accounts receivable	3,033,000	(816,000)
Inventory	(2,467,000)	(75,000)
Prepaid expenses and other current assets	(32,000)	(77,000)
Deposits and other assets	(70,000)	95,000
Increase (Decrease) in Operating Liabilities:
Accounts payable and accrued expenses	354,000	(36,000)
Operating lease liabilities	(164,000)	(172,000)
Deferred revenue	(55,000)	885,000
NET CASH PROVIDED BY OPERATING ACTIVITIES	1,285,000	567,000
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of property and equipment	(430,000)	(273,000)
NET CASH USED IN INVESTING ACTIVITIES	(430,000)	(273,000)
CASH FLOWS FROM FINANCING ACTIVITIES
Note payable - revolver - net	(901,000)	(868,000)
Payments of note payable - term note	(203,000)	(196,000)
Payments of finance lease obligations	(9,000)	(2,000)
Payments of loan payable - financed asset	(5,000)	(2,000)
NET CASH USED IN FINANCING ACTIVITIES	(1,118,000)	(1,068,000)
NET DECREASE IN CASH AND CASH EQUIVALENTS	(263,000)	(774,000)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	627,000	2,505,000
CASH AND CASH EQUIVALENTS AT END OF PERIOD	364,000	1,731,000
Supplemental cash flow information
Cash paid during the period for interest	283,000	307,000
Supplemental disclosure of non-cash investing and financing activities
Capitalization of related party note interest to principal		$ 400,000