Share-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2014

Shares awarded to non-employee directors [Line Items]

Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block]

The table below presents the amounts included in net income related to share-based compensation expense for the three and six months ended June 30, 2014 and 2013:

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2014		2013		2014		2013
(in thousands)
Awards to non-employee directors	$	132	$	120	$	256	$	231
Awards to key employees	295		341		809		630
Total compensation expense	427		461		1,065		861
Less: tax benefit	172		186		429		347
Share-Based Compensation amounts included in net income	$	255	$	275	$	636	$	514

Awards to non-employee directors [Member]

Shares awarded to non-employee directors [Line Items]

Schedule of Share-based Compensation, Activity [Table Text Block]

	Number of Shares	Weighted Average Grant date Fair Value
Outstanding - December 31, 2013	—	$	—
Granted	8,866	$	62.00
Vested	8,866	$	62.00
Outstanding - June 30, 2014	—	$	—

Award to key employees [Member]

Shares awarded to non-employee directors [Line Items]

Schedule of Share-based Compensation, Activity [Table Text Block]

The table below presents the summary of the stock activity for the awards to key employees for the six months ended June 30, 2014:

	Number of Shares	Weighted Average Fair Value
Outstanding—December 31, 2013	80,761	$	42.30
Granted	27,628	$	59.98
Vested	26,364	$	40.30
Outstanding—June 30, 2014	82,025	$	48.90