CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
OPERATING ACTIVITIES
Net loss	$ (2,810,939)	$ (3,167,146)
Adjustments to reconcile net loss to net cash used in operating activities:
Bad debt expense	0	(3,002)
Depreciation and amortization	424,020	449,071
Loss on disposal of assets	0	25,427
Loss on investment	13,714	57,514
Amortization of right-of-use asset	428,740	459,760
Stock-based compensation expense	76,154	343,824
Impairment of intangible assets	380,646	0
Changes in operating assets and liabilities:
Accounts receivable	(20,126)	12,582
Inventories	(28,947)	(16,606)
Prepaid expenses and vendor deposits	(58,175)	94,110
Contract assets	0	14,400
Other assets	57,270	(3,423)
Accounts payable	267,220	(155,910)
Accrued expenses	(2,249)	(294,211)
Contract liabilities	(7,423)	(268,302)
Lease liability	(373,184)	(402,857)
NET CASH USED IN OPERATING ACTIVITIES	(1,653,279)	(2,854,769)
INVESTING ACTIVITIES
Collection of note receivable	23,767	137,250
Purchases of property and equipment	(24,663)	(12,967)
Purchases of patent	(89,415)	(25,000)
NET CASH USED IN INVESTING ACTIVITIES	(90,311)	99,283
FINANCING ACTIVITIES
Proceeds from line of credit	0	131,540
Principal payments on loan payable	(209,941)	(188,323)
Proceeds from paycheck protection program loan	876,515	0
Proceeds from loan and security agreement	2,540,000	0
NET CASH USED IN FINANCING ACTIVITIES	3,206,574	(56,783)
NET DECREASE IN CASH, CASH EQUIVALENT AND RESTRICTED CASH	1,462,984	(2,812,269)
CASH, CASH EQUIVALENTS AND RESTRICTED CASH - BEGINNING OF PERIOD	3,525,415	7,061,253
CASH, CASH EQUIVALENTS AND RESTRICTED CASH - END OF PERIOD	4,988,399	4,248,984
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Cash paid for interest	$ 161,876	$ 107,646