Condensed Consolidated Statements of Cash Flows - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES
Net (Loss) Income	$ (152,000)	$ 1,058,000
Adjustments to reconcile net (loss) income to net cash provided by (used in) operating activities
Depreciation of property and equipment	713,000	656,000
Non-cash employee compensation expense	157,000	140,000
Non-cash directors compensation	52,000	55,000
Non-cash other income recognized	(104,000)	(92,000)
Non-cash interest expense	31,000	28,000
Amortization of Right-of-Use Asset	118,000	122,000
Deferred gain on sale of real estate	(10,000)	(10,000)
Loss on sale of equipment		16,000
Amortization of debt discount on convertible notes payable		78,000
Bad debt expense (recovery)	(78,000)	268,000
Amortization of deferred financing costs	36,000	30,000
Changes in Assets and Liabilities (Increase) Decrease in Operating Assets:
Accounts receivable	(816,000)	(1,033,000)
Inventory	(75,000)	(1,162,000)
Prepaid expenses and other current assets	(77,000)	(6,000)
Deposits and other assets	95,000	(76,000)
Income tax receivable		(1,416,000)
Increase (Decrease) in Operating Liabilities:
Accounts payable and accrued expenses	(36,000)	1,216,000
Operating lease liabilities	(172,000)	(167,000)
Deferred revenue	885,000	(7,000)
Income taxes payable		(12,000)
NET CASH PROVIDED BY (USED IN) OPERATING ACTIVITIES	567,000	(314,000)
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of property and equipment	(273,000)	(78,000)
NET CASH USED IN INVESTING ACTIVITIES	(273,000)	(78,000)
CASH FLOWS FROM FINANCING ACTIVITIES
Note payable - revolver - net - Sterling National Bank	(868,000)	1,033,000
Payments of note payable - term notes - SNB	(196,000)	(90,000)
Payments of finance lease obligations	(2,000)	(7,000)
Proceeds from issuance of common stock		984,000
Share issuance costs		(145,000)
Payments of notes payable issuances- related party		(1,012,000)
Payments of notes payable - third party		(100,000)
Payments of loan payable - financed asset	(2,000)	(71,000)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	(1,068,000)	592,000
NET (DECREASE) INCREASE IN CASH AND CASH EQUIVALENTS	(774,000)	200,000
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	2,505,000	1,294,000
CASH AND CASH EQUIVALENTS AT END OF PERIOD	1,731,000	1,494,000
Supplemental cash flow information
Cash paid during the period for interest	307,000	205,000
Supplemental disclosure of non-cash investing and financing activities
Capitalization of accrued interest on related party notes payable	400,000
Common Stock issued for conversion of notes payable and accrued interest		$ 885,000