Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Cash flows from operating activities
Net loss	$ (2,742,795)	$ (3,892,637)
Adjustments to reconcile net loss to cash used in operating activities:
Depreciation	53,272	58,300
Non-cash lease expense	1,165,424	1,171,170
Share-based compensation	4,156,274	1,657,721
Gain on debt extinguishment	(2,182,891)
Non-cash interest	24,581
Changes in operating assets and liabilities:
Accounts receivable	(1,136,668)	2,288,477
Inventories	(851,234)	(2,728,548)
Prepaid expenses and other current assets	(930,792)	(140,582)
Compensating cash arrangement	(612)
Other assets	25,422	(51,439)
Accounts payable	(484,458)	(527,418)
Accrued liabilities	(351,756)	(319,479)
Deferred revenue	4,101,707	318,654
Operating lease liability	(1,191,446)	(1,170,979)
Other liabilities	75,365
Net cash used in operating activities	(270,607)	(3,336,760)
Cash flows from investing activities
Purchase of property and equipment	(149,721)	(70,896)
Net cash used in investing activities	(149,721)	(70,896)
Cash flows from financing activities
Proceeds from Paycheck Protection Program loan		2,158,310
Proceeds from issuance of stock, net of issuance costs	401,943	15,073,393
Net cash provided by financing activities	401,943	17,231,703
Net (decrease) increase in cash and cash equivalents	(18,385)	13,824,047
Cash and cash equivalents at beginning of period	43,939,512	30,182,115
Cash and cash equivalents at end of period	43,921,127	44,006,162
Reconciliation of cash, cash equivalents, and restricted cash to balance sheet as of June 30th:
Cash and cash equivalents	42,054,296	44,006,162
Restricted cash - current	1,484,018
Restricted cash	$ 382,813