Consolidated Statements Of Stockholders' Equity (USD $)	Common Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Retained Earnings [Member]	Total
BALANCE at Dec. 31, 2010	$ 8,525,725	$ (1,700,173)	$ 45,620,217	$ 52,445,769
BALANCE, Shares at Dec. 31, 2010	5,115,435
Net Income			2,027,523	2,027,523
Dividends			(1,675,310)	(1,675,310)
Unrealized Gain (Loss) of Equity Method Investee		357,316		357,316
Unrealized Gains on Interest Rate Swaps, Net of Deferred Income Taxes		528,623		528,623
BALANCE at Dec. 31, 2011	8,525,725	(814,234)	45,972,430	53,683,921
BALANCE, Shares at Dec. 31, 2011	5,115,435			5,115,435
Director stock plan stock issuance	28,472		72,328	100,800
Director stock plan stock issuance, shares	17,083
Net Income			1,106,961	1,106,961
Dividends			(845,460)	(845,460)
Unrealized Gain (Loss) of Equity Method Investee		(17,002)		(17,002)
Unrealized Gains on Interest Rate Swaps, Net of Deferred Income Taxes		254,224		254,224
BALANCE at Jun. 30, 2012	$ 8,554,197	$ (577,012)	$ 46,306,259	$ 54,283,444
BALANCE, Shares at Jun. 30, 2012	5,132,518			5,132,518