Statements of Cash Flows (Unaudited) - USD ($)	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities
Net loss	$ (5,465,609)	$ (3,506,790)
Adjustments to reconcile net loss to cash used in operating activities:
Depreciation	86,482	88,774
Non-cash lease expense	1,756,758	1,756,757
Share-based compensation	2,413,434	898,836
Changes in operating assets and liabilities:
Accounts receivable	(80,145)	1,190,716
Inventories	(998,521)	(355,050)
Prepaid expenses and other current assets	(303,870)	(58,622)
Compensating cash arrangement	(250,295)
Other assets	(38,566)	(15,677)
Accounts payable	(530,516)	(694,385)
Accrued liabilities	235,026	480,632
Deferred revenue	1,112,558	(388,396)
Operating lease liability	(1,756,471)	(1,718,010)
Other liabilities		(380,514)
Net cash used in operating activities	(3,819,735)	(2,701,729)
Cash flows from investing activities
Purchase of equipment	(70,896)	(15,832)
Net cash used in investing activities	(70,896)	(15,832)
Cash flows from financing activities
Proceeds from Paycheck Protection Program loan	2,158,310
Proceeds from issuance of stock, net of issuance costs	15,146,035	23,572,048
Net cash provided by financing activities	17,304,345	23,572,048
Net increase in cash and cash equivalents	13,413,714	20,854,487
Cash and cash equivalents at beginning of period	30,182,115	10,796,072
Cash and cash equivalents at end of period	$ 43,595,829	$ 31,650,559