Statements of Cash Flows (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Cash flows from operating activities
Net loss	$ (1,971,531)	$ (2,122,820)
Adjustments to reconcile net loss to cash used in operating activities:
Depreciation	30,119	24,912
Non-cash lease expense	585,586	567,857
Share-based compensation	722,312	147,923
Changes in operating assets and liabilities:
Accounts receivable	714,499	(218,359)
Inventories	(1,322,610)	(117,468)
Prepaid expenses and other current assets	80,419	189,686
Long term receivables	(95,483)
Other assets	21,429	41,194
Accounts payable	(96,800)	656,870
Accrued liabilities	(378,907)	(368,794)
Deferred revenue	130,691	(182,265)
Operating lease liability	(585,489)	(567,857)
Other liabilities		172,180
Net cash used in operating activities	(2,165,765)	(1,776,941)
Cash flows from investing activities
Purchase of equipment		(9,833)
Net cash used in investing activities		(9,833)
Cash flows from financing activities
Proceeds from issuance of stock, net of issuance costs	8,373	31,518
Net cash provided by financing activities	8,373	31,518
Net decrease in cash and cash equivalents	(2,157,392)	(1,755,256)
Cash and cash equivalents at beginning of period	30,182,115	10,796,072
Cash and cash equivalents at end of period	$ 28,024,723	$ 9,040,816