Statements of Cash Flows - USD ($)	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities:
Net loss	$ (2,946,257)	$ (2,883,030)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	131,653	136,769
Amortization	1,413	7,430
Amortization of right-of-use assets	75,635	86,233
Inventory reserve	300	2,700
Share-based compensation expense	56,954	44,359
Changes in operating assets and liabilities:
Accounts receivable	(46,485)	(86,044)
Inventory	(64,318)	(17,438)
Other assets	150,654	18,553
Accounts payable	3,016	102,855
Accrued expenses	78,703	(38,559)
Lease liabilities	(91,211)	(97,851)
Other liabilities	2,306	(29,998)
Net cash used in operating activities	(2,647,637)	(2,754,021)
Cash flows from investing activities:
Purchases of furniture and equipment	(8,901)	(120,368)
Net cash used in investing activities	(8,901)	(120,368)
Cash flows from financing activities:
Proceeds from issuance of common stock	3,373	0
Repayment of notes payable	(141,298)	(135,457)
Payments under lease obligations	(6,135)	(5,549)
Net cash used in financing activities	(144,060)	(141,006)
Net change in cash and cash equivalents	(2,800,598)	(3,015,395)
Cash and cash equivalents:
Beginning of period	12,961,936	24,783,029
End of period	10,161,338	21,767,634
Cash paid for:
Interest	1,672	2,734
Income taxes	0	800
Non-cash investing and financing activities:
Property and equipment costs included in accounts payable	12,990	0
Commissions and deferred offering costs relating to proceeds from issuance of common stock	109	0
Prepaid insurance financed with promissory notes	$ 0	$ 45,666