Statements of Stockholders' Equity - USD ($)	Common Stock [Member]	Treasury Stock [Member]	Warrants [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Total
Balance at Dec. 31, 2021	$ 11,921	$ (60,000)	$ 702,492	$ 108,418,304	$ (82,740,335)	$ 26,332,382
Balance (in shares) at Dec. 31, 2021	11,921,388	117,223
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	$ 0	$ 0	0	44,359	0	44,359
Net loss	0	0	0	0	(2,883,030)	(2,883,030)
Balance at Mar. 31, 2022	$ 11,921	$ (60,000)	702,492	108,462,663	(85,623,365)	23,493,711
Balance (in shares) at Mar. 31, 2022	11,921,388	117,223
Balance at Dec. 31, 2022	$ 11,987	$ (60,000)	567,972	108,857,065	(94,134,505)	15,242,519
Balance (in shares) at Dec. 31, 2022	11,986,927	117,223
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock in connection with At-The-Market offering, net of issuance costs	$ 3	$ 0	0	3,365	0	3,368
Issuance of common stock in connection with At-The-Market offering, net of issuance costs (in shares)	2,869	0
Share-based compensation expense	$ 0	$ 0	0	56,954	0	56,954
Net loss	0	0	0	0	(2,946,257)	(2,946,257)
Balance at Mar. 31, 2023	$ 11,990	$ (60,000)	$ 567,972	$ 108,917,384	$ (97,080,762)	$ 12,356,584
Balance (in shares) at Mar. 31, 2023	11,989,796	117,223