Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities:
Net (loss) income	$ (378,037)	$ 56,534
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	103,770	64,985
Accretion of obligation for lease disposal costs	10,100	9,387
Accretion of beneficial conversion feature and discount	92,430	38,788
Equity based compensation	51,522	63,737
Changes in operating assets and liabilities:
Accounts receivable	(148,130)	(536,554)
Inventories	44,047	(320,397)
Prepaids and other current assets	45,268	27,797
Accounts payable and accrued liabilities	117,068	222,378
Unearned revenues	(26,278)	(47,231)
Net cash used in operating activities	(88,240)	(420,576)
Cash flows from investing activities:
Purchase of property, plant and equipment	(1,565)	(5,084)
Net cash used in investing activities	(1,565)	(5,084)
Cash flows from financing activities:
Proceeds from sale of stock	6,666	1,581
Payments on financing lease	(577)
Proceeds from issuance of related party notes payable	325,000
Principal payments on notes payable	(245,728)	(1,939)
Net cash provided by (used in) financing activities	85,361	(358)
Net decrease in cash, cash equivalents, and restricted cash	(4,444)	(426,018)
Cash, cash equivalents, and restricted cash at beginning of period	1,210,920	1,450,467
Cash, cash equivalents, and restricted cash at end of period	1,206,476	1,024,449
Supplemental disclosure of cash flow activities:
Cash paid for interest	60,205	59,127
Supplemental disclosure of noncash financing and investing transactions:
Decrease in accrued interest and increase in equity for conversion of dividends to stock	204,480	205,980
Increase in operating lease right-of-use asset and right-of-use liability for new lease	2,649,070
Decrease in related party notes payable and increase in equity for amounts allocated to warrants and beneficial conversion feature	247,560
Reconciliation of cash, cash equivalents, and restricted cash as shown in the condensed consolidated statements of cash flows is presented in the table below:
Cash and cash equivalents	568,656	398,604
Restricted cash included in long-term assets	637,820	625,845
Total cash, cash equivalents and restricted cash shown in statement of cash flows	$ 1,206,476	$ 1,024,449