Statements of Stockholders' Equity (Deficit) - USD ($)	Common Stock [Member]	Treasury Stock [Member]	Preferred Stock [Member]	Warrants [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Total	Series B and Series C Redeemable Convertible Preferred Stock [Member]
Balance at Dec. 31, 2020								$ 55,343,686
Balance (in shares) at Dec. 31, 2020								55,835,833
Increase (Decrease) in Temporary Equity [Roll Forward]
Share-based compensation expense								$ 0
Net loss								0
Balance at Mar. 31, 2021								$ 55,343,686
Balance (in shares) at Mar. 31, 2021								55,835,833
Balance at Dec. 31, 2020	$ 1,110	$ (60,000)	$ 17,211	$ 702,492	$ 22,725,949	$ (75,202,490)	$ (51,815,728)
Balance (in shares) at Dec. 31, 2020	1,110,347	117,223	17,210,609
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock for cash upon exercise of options	$ 2	$ 0	$ 0	0	10,048	0	10,050
Issuance of common stock for cash upon exercise of options (in shares)	2,084	0	0
Share-based compensation expense	$ 0	$ 0	$ 0	0	72,490	0	72,490
Net loss	0	0	0	0	0	(1,830,232)	(1,830,232)
Balance at Mar. 31, 2021	$ 1,112	$ (60,000)	$ 17,211	702,492	22,808,487	(77,032,722)	(53,563,420)
Balance (in shares) at Mar. 31, 2021	1,112,431	117,223	17,210,609
Balance at Dec. 31, 2021								$ 0
Balance (in shares) at Dec. 31, 2021								0
Increase (Decrease) in Temporary Equity [Roll Forward]
Share-based compensation expense								$ 0
Net loss								0
Balance at Mar. 31, 2022								$ 0
Balance (in shares) at Mar. 31, 2022								0
Balance at Dec. 31, 2021	$ 11,921	$ (60,000)	$ 0	702,492	108,418,304	(82,740,335)	26,332,382
Balance (in shares) at Dec. 31, 2021	11,921,388	117,223	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Share-based compensation expense	$ 0	$ 0	$ 0	0	44,359	0	44,359
Net loss	0	0	0	0	0	(2,883,030)	(2,883,030)
Balance at Mar. 31, 2022	$ 11,921	$ (60,000)	$ 0	$ 702,492	$ 108,462,663	$ (85,623,365)	$ 23,493,711
Balance (in shares) at Mar. 31, 2022	11,921,388	117,223	0