Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($)	Mar. 31, 2023	Dec. 31, 2022
CURRENT ASSETS
Cash and cash equivalents	$ 915,176	$ 1,543,418
Accounts receivable, net	131,224	54,991
Inventory, net	244,497	254,491
Prepaid insurance and services	188,638	101,135
Prepaid clinical expenses	2,513,923	2,204,520
Total current assets	3,993,458	4,158,555
FURNITURE AND EQUIPMENT, NET	50,369	55,188
RIGHT-TO-USE LEASE ASSET, NET	53,393	1,470
TOTAL ASSETS	4,097,220	4,215,213
CURRENT LIABILITIES
Current portion of lease liability	16,969	0
Accounts payable and accrued expenses	4,482,600	3,480,669
Total current liabilities	4,499,569	3,480,669
LONG-TERM LIABILITIES
Lease liability, net of current portion	36,527	0
Total long-term liabilities	36,527	0
STOCKHOLDERS' EQUITY (DEFICIT)
Common stock, par value $.0001 per share, 50,000,000 and 20,000,000 shares authorized, 10,053,544 and 8,481,848 shares issued and outstanding at March 31, 2023 and December 31, 2022, respectively	1,056	849
Preferred stock, par value $.0001 per share, 5,000,000 shares authorized, 0 outstanding	0	0
Additional paid-in capital	68,366,532	64,533,074
Accumulated deficit	(68,806,464)	(63,799,379)
Total stockholders' equity (deficit)	(438,876)	734,544
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT)	$ 4,097,220	$ 4,215,213