Consolidated Statements of Changes in Stockholders' Equity - USD ($)	Total	Common Stock	Treasury Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss Cumulative Effect, Period of Adoption, Adjustment	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment
Beginning Balance at Dec. 31, 2018	$ 52,332,411	$ 12,094,413	$ (14,235,190)	$ 8,981,523	$ (2,057,985)	$ (119,014)	$ 47,549,650	$ 119,014
Beginning Balance, shares at Dec. 31, 2018		3,350,833
Net income	5,513,608						$ 5,513,608
Other comprehensive Income	$ 189,129				$ 189,129
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201802Member				us-gaap:AccountingStandardsUpdate201802Member		us-gaap:AccountingStandardsUpdate201802Member
Stock compensation expense	$ 968,467			968,467
Distribution to shareholders	(1,610,852)						$ (1,610,852)
Cash settlement of stock options	(1,687,782)			(1,687,782)
Ending Balance at Dec. 31, 2019	55,704,981	$ 12,094,413	(14,235,190)	8,262,208	$ (1,987,870)		51,571,420
Ending Balance, shares at Dec. 31, 2019		3,350,833
Net income	8,098,766						8,098,766
Other comprehensive Income	1,161,903				1,161,903
Stock compensation expense	1,259,079			1,259,079
Distribution to shareholders	(1,636,934)						(1,636,934)
Issuance of common stock	59,754	$ 6,250		53,504
Issuance of common stock (shares)		2,500
Cash settlement of stock options	(1,644,118)			(1,644,118)
Purchase of treasury stock	$ (286,988)		(286,988)
Purchase of treasury stock (shares)	(14,420)	(14,420)
Ending Balance at Dec. 31, 2020	$ 62,716,443	$ 12,100,663	$ (14,522,178)	$ 7,930,673	$ (825,967)		$ 58,033,252
Ending Balance, shares at Dec. 31, 2020		3,338,913