Statements of Changes in Stockholders' Equity (Unaudited) - USD ($)	Common Stock [Member]	Treasury Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balances (in shares) at Dec. 31, 2020	1,942,495
Balances at Dec. 31, 2020	$ 59,335	$ 0	$ 0	$ 15,727,503	$ 15,786,838
Net income (loss)	$ 0	0	0	601,155	601,155
Balances (in shares) at Jun. 30, 2021	1,942,495
Balances at Jun. 30, 2021	$ 59,335	0	0	16,328,658	16,387,993
Balances (in shares) at Mar. 31, 2021	1,942,495
Balances at Mar. 31, 2021	$ 59,335	0	0	16,154,310	16,213,645
Net income (loss)	$ 0	0	0	174,348	174,348
Balances (in shares) at Jun. 30, 2021	1,942,495
Balances at Jun. 30, 2021	$ 59,335	0	0	16,328,658	16,387,993
Balances (in shares) at Dec. 31, 2021	1,942,495
Balances at Dec. 31, 2021	$ 59,335	0	0	16,546,852	16,606,187
Issuances under share-based compensation (in shares)	31,584
Issuances under share-based compensation	$ 0	0	0	0	0
Share-based compensation	0	0	414,291	0	414,291
Repurchases of common stock	0	(131,335)	0	0	(131,335)
Net income (loss)	$ 0	0	0	(271,951)	(271,951)
Balances (in shares) at Jun. 30, 2022	1,974,079
Balances at Jun. 30, 2022	$ 59,335	(131,335)	414,291	16,274,901	16,617,192
Balances (in shares) at Mar. 31, 2022	1,942,495
Balances at Mar. 31, 2022	$ 59,335	0	0	16,551,592	16,610,927
Issuances under share-based compensation (in shares)	31,584
Issuances under share-based compensation		0	0	0	0
Share-based compensation	$ 0	0	414,291	0	414,291
Repurchases of common stock	0	(131,335)	0	0	(131,335)
Net income (loss)	$ 0	0	0	(276,691)	(276,691)
Balances (in shares) at Jun. 30, 2022	1,974,079
Balances at Jun. 30, 2022	$ 59,335	$ (131,335)	$ 414,291	$ 16,274,901	$ 16,617,192