CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ EQUITY - USD ($)	Common Stock	Treasury Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Total
Balance at Dec. 31, 2017	$ 5,963,850	$ (22,507,760)	$ 22,735,228	$ 177,614,274	$ 372,616	$ 184,178,208
Increase (decrease) in shareholders' equity
Net Income				25,075,207		25,075,207
Stock Repurchase		(2,192,445)				(2,192,445)
Vested Restricted Stock	19,065		(517,439)			(498,374)
Stock Issuance	1,832		113,674			115,506
Stock Compensation Expense from Restricted Stock Grants and Equity Classified Stock Options			897,325			897,325
Cash Dividends				(664,495)		(664,495)
Other Comprehensive Income (Loss), Net of Income Tax					308,810	308,810
Balance at Jun. 30, 2018	5,984,747	(24,700,205)	23,228,788	202,024,986	681,426	207,219,742
Balance at Dec. 31, 2018	5,995,257	(32,345,002)	24,326,778	213,297,897	486,543	211,761,473
Increase (decrease) in shareholders' equity
Net Income				17,064,897		17,064,897
Stock Repurchase		(31,096,662)				(31,096,662)
Vested Restricted Stock	12,957		(316,272)			(303,315)
Stock Issuance	6,322		356,924			363,246
Stock Compensation Expense from Restricted Stock Grants and Equity Classified Stock Options			1,082,630			1,082,630
Cash Dividends				(1,029,028)		(1,029,028)
Other Comprehensive Income (Loss), Net of Income Tax					(342,831)	(342,831)
Balance at Jun. 30, 2019	$ 6,014,536	$ (63,441,664)	$ 25,450,060	$ 229,333,766	$ 143,712	$ 197,500,410