Consolidated Statements of Changes in Shareholders' Equity (Unaudited) (USD $)	Common Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balance at Dec. 31, 2010	$ 11,277,346	$ 34,892,905	$ (2,064,688)	$ 44,105,563
Comprehensive income:
Net income		920,886		920,886
Other comprehensive income net of tax:
Other comprehensive income net of tax			192,971	192,971
Cash dividends		(440,371)		(440,371)
Amortization of unearned compensation, restricted stock awards		35,279		35,279
Issuance of common stock - nonvested shares	34,161	(34,161)		0
Issuance of common stock - vested shares	14,874	53,080		67,954
Exercise of stock options	58,011	91,558		149,569
Balance at Mar. 31, 2011	11,384,392	35,519,176	(1,871,717)	45,031,851
Balance at Dec. 31, 2011	11,384,392	37,503,865	(1,317,397)	47,570,860
Comprehensive income:
Net income		953,815		953,815
Other comprehensive income net of tax:
Other comprehensive income net of tax			(213,362)	(213,362)
Cash dividends		(443,419)		(443,419)
Amortization of unearned compensation, restricted stock awards		34,468		34,468
Issuance of common stock - nonvested shares	40,922	(40,922)
Issuance of common stock - vested shares	42,183	110,970		153,153
Balance at Mar. 31, 2012	$ 11,467,497	$ 38,118,777	$ (1,530,759)	$ 48,055,515