Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2021	4,812,085
Balance at Dec. 31, 2021	$ 48,121	$ 24,894,571	$ 39,410,534	$ 64,353,226
Stock-based compensation	0	104,927	0	104,927
Dividend declared	$ 0	0	(675,872)	(675,872)
401(k) stock match (in shares)	7,611
401(k) stock match	$ 76	156,634	0	156,710
Issuance of deferred stock awards (in shares)	19,601
Issuance of deferred stock awards	$ 196	(212,055)	0	(211,859)
Net income	$ 0	0	1,773,913	1,773,913
Balance (in shares) at Mar. 31, 2022	4,839,297
Balance at Mar. 31, 2022	$ 48,393	24,944,077	40,508,575	65,501,045
Balance (in shares) at Dec. 31, 2022	4,888,975
Balance at Dec. 31, 2022	$ 48,890	25,914,644	45,221,509	71,185,043
Stock-based compensation	0	129,477	0	129,477
Dividend declared	$ 0	0	(349,877)	(349,877)
401(k) stock match (in shares)	7,804
401(k) stock match	$ 78	206,728	0	206,806
Issuance of deferred stock awards (in shares)	13,629
Issuance of deferred stock awards	$ 136	(166,841)	0	(166,705)
Net income	$ 0	0	2,770,508	2,770,508
Balance (in shares) at Mar. 31, 2023	4,910,408
Balance at Mar. 31, 2023	$ 49,104	$ 26,084,008	$ 47,642,140	$ 73,775,252