Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2012

Stock-Based Compensation [Abstract]

Schedule of Stock Options Roll Forward [Table Text Block]

				Weighted
			Weighted	Average
			Average	Remaining		Aggregate
			Exercise	Contractual		Intrinsic
	Shares		Price	Term		Value
Outstanding and Exercisable at January 1, 2012	39,950	$	8.94	2.8
Granted	-		-	-
Canceled	-		-	-
Exercised	(11,450)		6.44	-
Outstanding and Exercisable at September 30, 2012	28,500	$	9.94	2.4	$	638,000

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

					Aggregate
			Grant Date		Fair
Grant Date	Shares		Fair Value		Value	Vesting Date
March 15, 2011	24,836	$	38.46	$	955,000	March 15, 2015
July 21, 2011	16,600		38.44		638,000	July 21, 2015
August 29, 2011	5,000		24.50		123,000	August 29, 2014
February 1, 2012	66,000		30.15		1,990,000	February 1, 2016
March 6, 2012	18,347		27.49		504,000	March 6, 2016
May 23, 2012	8,000		28.05		224,000	May 23, 2016

Schedule of Nonvested Performance-based Units Activity [Table Text Block]

						Aggregate
Incentive				Grant Date		Fair
Plan	Grant Date	Units		Fair Value		Value	Vesting Date
2010 - 2012	March 2, 2010	36,541	$	31.83	$	1,163,000	March 2, 2013
2011 - 2013	March 15, 2011	34,002		38.46		1,308,000	March 15, 2014
2012 - 2014	March 6, 2012	43,042		27.49		1,183,000	March 6, 2015