Condensed Balance Sheets - USD ($)	Mar. 31, 2024	Dec. 31, 2023
Current assets:
Cash and cash equivalents	$ 17,835,968	$ 21,716,077
Accounts receivable, net	120,529	98,906
Inventory, net	971,297	667,118
Prepaid and other current assets	955,539	695,879
Total current assets	19,883,333	23,177,980
Property and equipment, at cost:
Leasehold improvements	1,212,417	1,212,417
Office equipment	47,308	47,308
Furniture and fixtures	417,654	414,303
Machinery and equipment	2,582,220	2,559,356
Construction in progress	569,723	423,077
Property and equipment, gross	4,829,322	4,656,461
Less accumulated depreciation	(3,615,405)	(3,545,422)
Net property and equipment	1,213,917	1,111,039
Long-term assets:
Lease right-of-use assets, net	2,227,561	2,380,225
Intangible assets, net of accumulated amortization	33,115	0
Other long-term assets	1,013,034	1,086,581
Total long-term assets	3,273,710	3,466,806
Total assets	24,370,960	27,755,825
Current liabilities:
Accounts payable	1,095,730	1,137,823
Accrued expenses	673,457	1,444,296
Clinical holdback - current portion	93,376	65,300
Lease liabilities - current portion	494,967	406,636
Total current liabilities	2,357,530	3,054,055
Long-term liabilities:
Clinical holdback - long-term portion	30,389	54,935
Convertible notes payable, net (including related parties)	4,472,456	4,258,179
Lease liabilities - long-term portion	1,902,991	2,036,067
Total long-term liabilities	6,405,836	6,349,181
Total liabilities	8,763,366	9,403,236
Commitments and contingencies
Stockholders' equity:
Common stock, $.001 par, 200,000,000 authorized, 22,216,570 shares issued and 22,099,347 outstanding as of March 31, 2024; and 21,774,604 shares issued and 21,657,381 outstanding as of December 31, 2023	22,217	21,775
Treasury stock, 117,223 common shares	(60,000)	(60,000)
Warrants	2,631,838	2,787,137
Additional paid-in-capital	124,994,678	123,985,306
Accumulated deficit	(111,981,139)	(108,381,629)
Total stockholders' equity	15,607,594	18,352,589
Total liabilities and stockholders' equity	$ 24,370,960	$ 27,755,825