Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2013

Stock-based Compensation [Abstract]

Schedule of Stock Options Roll Forward [Table Text Block]

				Weighted		Aggregate
			Weighted	Average		Intrinsic
			Average	Remaining		Value
			Exercise	Contractual		(Dollars in
	Shares		Price	Term		thousands)
Outstanding and Exercisable at January 1, 2013	22,500	$	10.41	2.2
Granted	-		-	-
Canceled	-		-	-
Exercised	-		-	-
Outstanding and Exercisable at March 31, 2013	22,500	$	10.41	2.0	$	762

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

					Aggregate
			Grant Date		Fair Value
Grant Date	Shares		Fair Value		(Dollars in Thousands)	Vesting Date
February 1, 2012	66,000	$	30.15	$	1,990	February 1, 2016
March 6, 2012	18,347		27.49		504	March 6, 2016
February 27, 2013	12,973		42.49		551	February 27, 2017

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

						Aggregate
Incentive				Grant Date		Fair Value
Plan	Grant Date	Units		Fair Value		(Dollars in Thousands)	Vesting Date
2011 - 2013	March 15, 2011	34,002	$	38.46	$	1,308	March 15, 2014
2012 - 2014	March 6, 2012	43,042		27.49		1,183	March 6, 2015
2013 - 2015	February 27, 2013	31,418		42.49		1,335	February 27, 2016