Balance Sheets - USD ($)	Jun. 30, 2023	Dec. 31, 2022
Current assets:
Cash and cash equivalents	$ 10,705,017	$ 12,961,936
Accounts receivable, net	155,746	77,470
Inventory, net	581,474	436,723
Other current assets	587,828	655,362
Total current assets	12,030,065	14,131,491
Property and equipment, at cost:
Leasehold improvements	1,195,637	1,195,637
Office equipment	99,344	99,344
Furniture and fixtures	419,303	419,303
Machinery and equipment	2,628,509	2,572,243
Construction in progress	384,888	413,843
Property and equipment, gross	4,727,681	4,700,370
Less accumulated depreciation	(3,472,349)	(3,217,319)
Net property and equipment	1,255,332	1,483,051
Long-term assets:
Lease right-of-use assets, net	162,006	319,557
Intangible assets, net of accumulated amortization	970	3,294
Other long-term assets	865,588	958,177
Total long-term assets	1,028,564	1,281,028
Total assets	14,313,961	16,895,570
Current liabilities:
Accounts payable	546,877	510,758
Accrued expenses	536,830	456,714
Note payable	0	141,298
Clinical holdback - current portion	88,738	45,206
Lease liabilities - current portion	209,098	373,833
Total current liabilities	1,381,543	1,527,809
Long-term liabilities:
Clinical holdback - long-term portion	56,245	96,658
Lease liabilities - long-term portion	0	28,584
Total long-term liabilities	56,245	125,242
Total liabilities	1,437,788	1,653,051
Commitments and contingencies
Stockholders' equity:
Common stock, $.001 par, 200,000,000 authorized, 15,190,376 shares issued and 15,073,153 outstanding as of June 30, 2023; and 11,986,927 shares issued and 11,869,704 outstanding as of December 31, 2022	15,190	11,987
Treasury stock, 117,223 shares	(60,000)	(60,000)
Warrants	1,918,103	567,972
Additional paid-in-capital	110,977,150	108,857,065
Accumulated deficit	(99,974,270)	(94,134,505)
Total stockholders' equity	12,876,173	15,242,519
Total liabilities and stockholders' equity	$ 14,313,961	$ 16,895,570