CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Cash flows from operating activities
Net loss	$ (2,359,068)	$ (2,014,179)
Adjustments to reconcile net loss to net cash used in operating activities:
Amortization of debt discount and equity issuance costs	68,330	66,321
Depreciation and amortization	121,941	34,087
Amortization of loan origination fees		(2,487)
Loss on extinguishment of debt		1,137,428
Non-cash lease expense	103,450
Bad debt expense	(39,463)	51,572
Loss on disposal of property and equipment	2,964
Loss (gain) on warrant derivative liability	1,198,744	(1,375,620)
Stock-based compensation	103,932	572,574
Loss on discontinued operations		5,183
Gain on sale of building		(139,105)
Changes in operating assets and liabilities, net of acquisitions
Accounts receivable	157,369	204,502
Prepaid expenses and other assets	367,486	(261,778)
Inventories	(48,026)
Accounts payable and accrued liabilities	(1,034,883)	238,674
Operating lease liabilities	(92,701)
Net cash used in operating activities:	(1,449,925)	(1,482,828)
Cash flows from investing activities
Purchases of property and equipment	(264,114)	(3,011)
Proceeds from sale of investment	208,761
Proceeds from sale of building		1,421,134
Net cash (used in) provided by investing activities	(55,353)	1,418,123
Cash flows from financing activities
Proceeds from sale of common stock and warrants		90,000
Proceeds from exercise of stock options	135,002
Proceeds from notes payable	1,660,000	1,500,000
Payments on notes payable	(200,000)	(975,000)
Net cash provided by financing activities	1,595,002	615,000
Net increase in cash and cash equivalents	89,724	550,295
Cash and cash equivalents, beginning of period	755,769	224,994	$ 224,994
Cash and cash equivalents, end of period	845,493	775,289	$ 755,769
Supplemental schedule of cash flow information
Cash paid for interest	13,705	173,067
Non-cash investing and financing activities
Cashless warrant exercises	1,557,078
Beneficial conversion feature	417,539	233,500
Issuance of common stock to a consultant	100,000
Debt converted to equity		250,000
Issuance of common stock to an employee		100,000
10% Warrants
Non-cash investing and financing activities
Warrants recorded as a debt discount and additional paid-in capital	$ 429,300
15% Warrants
Non-cash investing and financing activities
Warrants recorded as a debt discount and additional paid-in capital		167,163
Warrants recorded as a loss on extinguishment of debt and additional paid-in capital		$ 668,336