Share Based Compensation (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Share based compensation arrangements [Line Items]
Number of additional shares approved for grant (in shares)	200,000
Total compensation cost not yet recognized	$ 2,400
Total compensation cost not yet recognized, period for recognition	2 years 1 month 6 days
Information regarding options exercised [Abstract]
Intrinsic value	$ 117	$ 56
Cash proceeds received	32	15
Tax benefit realized	41	20
Long-term Incentive Plan [Member]
Share based compensation arrangements [Line Items]
Total compensation expense recognized	400	400
Tax benefit relating to compensation expense recognized	$ 100	$ 100
Stock Options [Member]
Outstanding stock option grants and transaction [Roll Forward]
Outstanding, beginning balance (in shares)	235,596
Granted (in shares)	0
Exercised (in shares)	(10,216)
Forfeited (in shares)	(498)
Expired (in shares)	0
Outstanding, ending balance (in shares)	224,882
Vested and expected to vest, period end (in shares)	224,631
Exercisable, period end (in shares)	202,938
Weighted Average Exercise Price [Roll Forward]
Outstanding, beginning balance (in dollars per share)	$ 4.94
Exercised (in dollars per share)	3.18
Forfeited (in dollars per share)	6.42
Outstanding, ending balance (in dollars per share)	5.01
Vested and expected to vest, period end (in dollars per share)	5.01
Exercisable, period end (in dollars per share)	$ 4.86
Weighted-Average Remaining Contractual Term [Abstract]
Outstanding, Weighted Average Remaining Contractual Term	5 years 10 months 2 days
Vested and Expected to Vest, Weighted-Average Remaining Contractual Term	5 years 10 months 2 days
Exercisable, Weighted Average Remaining Contractual Term	5 years 8 months 8 days
Aggregate intrinsic value [Abstract]
Outstanding, Aggregate Intrinsic Value	$ 2,180
Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value	2,178
Exercisable, Aggregate Intrinsic Value	$ 2,002
Non-Vested Restricted Stock, Restricted Stock Units and PSU's [Member]
Number of Shares [Roll Forward]
Outstanding, beginning balance (in shares)	261,981
Granted (in shares)	96,191
Vested (in shares)	(21,225)
Forfeited (in shares)	(1,398)
Outstanding, ending balance (in shares)	335,549
Weighted Average Grant Date Fair Value [Roll Forward]
Outstanding, beginning balance (in dollars per share)	$ 11.29
Granted (in dollars per share)	14.39
Vested (in dollars per share)	12.78
Forfeited (in dollars per share)	12.70
Outstanding, ending balance (in dollars per share)	$ 12.08
Director [Member]
Share based compensation arrangements [Line Items]
Shares issues as retainer fees (in shares)	2,000	1,000
Non-Employee Directors [Member]
Share based compensation arrangements [Line Items]
Number of additional shares approved for grant (in shares)	200,000
Total compensation expense recognized	$ 30	$ 20
Tax benefit relating to compensation expense recognized	$ 10	$ 10
Officers [Member] | Restricted Stock [Member] | Long-term Incentive Plan [Member]
Share based compensation arrangements [Line Items]
Number of stock units or restricted shares issued in period (in shares)	70,000	70,000
Vesting period	3 years	3 years
Officers [Member] | Performance stock units [Member] | Long-term Incentive Plan [Member]
Share based compensation arrangements [Line Items]
Number of stock units or restricted shares issued in period (in shares)	30,000	30,000
Vesting period	3 years	3 years