Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Preferred Stock [Member]	AOCI Attributable to Parent [Member]
Balance (in shares) at Dec. 31, 2020		1,280,207
Balance at Dec. 31, 2020	$ 24,814,182	$ 1,280	$ 130,722,286	$ (105,909,384)
Sale of common stock (in shares)		673,171
Sale of common stock	31,094,302	$ 673	31,093,629	0
Issuance of common stock upon exercise of warrants, net of issuance costs (in shares)		84,600
Issuance of common stock upon exercise of warrants, net of issuance costs	2,201,450	$ 85	2,201,365	0
Stock-based compensation expense	181,280	0	181,280	0
Net loss	(4,643,919)	$ 0	0	(4,643,919)
Unrealized loss on marketable securities	0
Balance (in shares) at Mar. 31, 2021		2,037,978
Balance at Mar. 31, 2021	53,647,295	$ 2,038	164,198,560	(110,553,303)
Balance (in shares) at Dec. 31, 2021		2,038,185			0
Balance at Dec. 31, 2021	34,911,467	$ 2,038	164,914,540	(130,005,111)	$ 0	$ 0
Sale of common stock (in shares)		0			10,000
Sale of common stock	5,000	$ 0	0	0	$ 5,000	0
Net loss	(4,526,641)	$ 0	0	(4,526,641)	$ 0	0
Stock-based compensation expense and vesting of restricted stock units (in shares)		207			0
Stock-based compensation expense and vesting of restricted stock units	278,131	$ 0	278,131	0	$ 0	0
Unrealized loss on marketable securities	(49,658)	$ 0	0	0	$ 0	(49,658)
Balance (in shares) at Mar. 31, 2022		2,038,392			10,000
Balance at Mar. 31, 2022	$ 30,618,299	$ 2,038	$ 165,192,671	$ (134,531,752)	$ 5,000	$ (49,658)