Fair Value of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2012

Fair Value of Financial Instruments [Abstract]

Summary of carrying amounts and fair values of long-term debt

	December 31, 2012				December 31, 2011
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Variable rate long-term debt	$	38,087	$	38,087	$	40,989	$	40,989
Fixed rate long-term debt	$	31,429	$	32,818	$	37,143	$	37,500