Consolidated Statement of Changes in Stockholders' Equity - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Deferred Compensation, Share-Based Payments [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2020	26,260,776
Balance at Dec. 31, 2020	$ 194,692	$ 89,659,433	$ (2,165,721)	$ (5,926,872)	$ (65,058,171)	$ 16,703,361
Issuance of common stock under equity incentive plan (in shares)	536,878
Issuance of common stock under equity incentive plan	$ 535	2,750,204	0	(2,168,347)	0	582,392
Warrant compensation cost	$ 0	35,940	0	0	0	35,940
Cashless warrant exercise (in shares)	39,745
Cashless warrant exercise	$ 39	(39)
Reversal of deferred compensation amortization that did not vest (in shares)	(173,111)
Reversal of deferred compensation amortization that did not vest	$ (173)	(345,267)		241,295		(104,145)
Issuance of common stock, private offering (in shares)	142,857
Issuance of common stock, private offering	$ 142	999,858	0	0	0	1,000,000
Deferred compensation amortization				1,011,729		1,011,729
Purchase of treasury stock costs	0	0	(238,737)	0	0	(238,737)
Net (loss)	$ 0	0	0	0	(321,634)	(321,634)
Balance (in shares) at Dec. 31, 2021	26,807,145
Balance at Dec. 31, 2021	$ 195,235	93,100,129	(2,404,458)	(6,842,195)	(65,379,805)	18,668,906
Issuance of common stock under equity incentive plan (in shares)	369,755
Issuance of common stock under equity incentive plan	$ 368	1,182,939	0	(166,329)	0	1,016,978
Warrant compensation cost	$ 0	20,963	0	0	0	20,963
Reversal of deferred compensation amortization that did not vest (in shares)	(132,000)
Reversal of deferred compensation amortization that did not vest	$ (132)	(255,428)	0	145,498	0	(110,062)
Deferred compensation amortization				1,165,126		1,165,126
Purchase of treasury stock costs	0	0	(1,344,569)	0	0	(1,344,569)
Net (loss)	$ 0	0	0	0	(5,483,244)	(5,483,244)
Balance (in shares) at Dec. 31, 2022	27,044,900
Balance at Dec. 31, 2022	$ 195,471	$ 94,048,603	$ (3,749,027)	$ (5,697,900)	$ (70,863,049)	$ 13,934,098