Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)	Common Stock [Member]	Treasury Stock, Common [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2021	40,482,659	(12,253,502)
Balance at Dec. 31, 2021	$ 40,483	$ (18,929,915)	$ 101,026,496	$ (63,746,602)	$ 18,390,462
Stock-based compensation expense	0	0	453,791	0	453,791
Net loss	$ 0	$ 0	0	(2,491,665)	(2,491,665)
Issuance of common stock upon exercise of stock options (in shares)	35,000	0
Issuance of common stock upon exercise of stock options	$ 35	$ 0	42,315	0	42,350
Balance (in shares) at Mar. 31, 2022	40,517,659	(12,253,502)
Balance at Mar. 31, 2022	$ 40,518	$ (18,929,915)	101,522,602	(66,238,267)	16,394,938
Balance (in shares) at Dec. 31, 2021	40,482,659	(12,253,502)
Balance at Dec. 31, 2021	$ 40,483	$ (18,929,915)	101,026,496	(63,746,602)	18,390,462
Net loss					(5,779,660)
Issuance of common stock upon exercise of stock options (in shares)	35,000
Balance (in shares) at Jun. 30, 2022	40,517,659	(12,253,502)
Balance at Jun. 30, 2022	$ 40,518	$ (18,929,915)	101,977,102	(69,526,262)	13,561,443
Balance (in shares) at Mar. 31, 2022	40,517,659	(12,253,502)
Balance at Mar. 31, 2022	$ 40,518	$ (18,929,915)	101,522,602	(66,238,267)	16,394,938
Stock-based compensation expense	0	0	454,500	0	454,500
Net loss	$ 0	$ 0	0	(3,287,995)	(3,287,995)
Balance (in shares) at Jun. 30, 2022	40,517,659	(12,253,502)
Balance at Jun. 30, 2022	$ 40,518	$ (18,929,915)	101,977,102	(69,526,262)	13,561,443
Balance (in shares) at Dec. 31, 2022	40,816,602	(12,253,502)
Balance at Dec. 31, 2022	$ 40,817	$ (18,929,915)	103,458,697	(73,481,860)	11,087,739
Stock-based compensation expense	$ 0	$ 0	330,639	0	330,639
Issuance of common stock upon vesting of restricted stock units (in shares)	247,961	0
Issuance of common stock upon vesting of restricted stock units	$ 248	$ 0	341,938	0	342,186
Net loss	$ 0	$ 0	0	(956,444)	(956,444)
Balance (in shares) at Mar. 31, 2023	41,064,563	(12,253,502)
Balance at Mar. 31, 2023	$ 41,065	$ (18,929,915)	104,131,274	(74,438,304)	10,804,120
Balance (in shares) at Dec. 31, 2022	40,816,602	(12,253,502)
Balance at Dec. 31, 2022	$ 40,817	$ (18,929,915)	103,458,697	(73,481,860)	11,087,739
Issuance of common stock upon vesting of restricted stock units (in shares)	247,961
Net loss					$ (3,109,404)
Issuance of common stock upon exercise of stock options (in shares)					(0)
Balance (in shares) at Jun. 30, 2023	41,064,563	(12,253,502)
Balance at Jun. 30, 2023	$ 41,065	$ (18,929,915)	104,465,590	(76,591,264)	$ 8,985,476
Balance (in shares) at Mar. 31, 2023	41,064,563	(12,253,502)
Balance at Mar. 31, 2023	$ 41,065	$ (18,929,915)	104,131,274	(74,438,304)	10,804,120
Stock-based compensation expense	0	0	334,316	0	334,316
Net loss	$ 0	$ 0	0	(2,152,960)	(2,152,960)
Balance (in shares) at Jun. 30, 2023	41,064,563	(12,253,502)
Balance at Jun. 30, 2023	$ 41,065	$ (18,929,915)	$ 104,465,590	$ (76,591,264)	$ 8,985,476