CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (UNAUDITED) - USD ($)	ADDITIONAL PAID IN CAPITAL [Member]	RETAINED EARNINGS [Member]	TREASURY STOCK [Member]	ACCUMULATED OTHER COMPREHENSIVE INCOME [Member]	Total
Balance beginning at Dec. 31, 2014	$ 28,779,108	$ 8,640,291	$ (1,902,439)	$ 1,243,022	$ 36,759,982
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		2,458,397			2,458,397
Other comprehensive loss				(289,891)	(289,891)
Exercise of stock options	113,254				113,254
Stock-based compensation expense	38,907				38,907
Cash dividends ($0.26 per common share)		(1,160,952)			(1,160,952)
Balance ending at Jun. 30, 2015	28,931,269	9,937,736	(1,902,439)	953,131	37,919,697
Balance beginning at Dec. 31, 2015	36,341,744	4,064,834	(2,247,415)	992,549	39,151,712
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		2,507,846			2,507,846
Other comprehensive loss				838,910	838,910
Exercise of stock options	260,546				260,546
Stock-based compensation expense	39,683				39,683
Cash dividends ($0.26 per common share)		(1,281,709)			(1,281,709)
Balance ending at Jun. 30, 2016	$ 36,641,973	$ 5,290,971	$ (2,247,415)	$ 1,831,459	$ 41,516,988