Stock-Based Compensation (Details) (USD $)	9 Months Ended
	Sep. 30, 2013 share_based_compensation_plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of plans	1
Share based compensation expense	$ 380,000
Shares [Roll Forward]
Exercised (in shares)	(2,743)
Stock Options [Member]
Shares [Roll Forward]
Outstanding at beginning of year (in shares)	82,171
Granted (in shares)	0
Exercised (in shares)	(2,743)
Forfeited (in shares)	(16,000)
Outstanding at end of period (in shares)	63,428
Weighted Average Exercise Price [Roll Forward]
Outstanding at beginning of year (in dollars per share)	$ 17.32
Granted (in dollars per share)	$ 0.00
Exercised (in dollars per share)	$ 14.00
Forfeited (in dollars per share)	$ 22.00
Outstanding at end of period (in dollars per share)	$ 16.29
Aggregate intrinsic value of options outstanding at end of period	182,000
Options vested and exercisable (in shares)	63,428
Non vested stock option (in shares)	0
Weighted average remaining contractual term for options	5 years 4 days
2006 Equity Compensation Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)	430,000
2006 Equity Compensation Plan [Member] | Stock Options [Member]
Weighted Average Exercise Price [Roll Forward]
Options vested and exercisable (in shares)	57,428
2006 Equity Compensation Plan [Member] | Restricted Stock [Member]
Shares [Roll Forward]
Outstanding at beginning of year (in shares)	120,455
Granted (in shares)	32,500
Vested (in shares)	(21,455)
Forfeited (in shares)	(3,750)
Non-vested at end of period (in shares)	127,750
Weighted Average Grant-Date Fair Value [Roll Forward]
Outstanding at beginning of year (in dollars per share)	$ 15.66
Granted (in dollars per share)	$ 17.96
Vested (in dollars per share)	$ (14.72)
Forfeited (in dollars per share)	$ (16.85)
Non-vested at end of period (in dollars per share)	$ 16.36
Aggregate Intrinsic Value [Abstract]
Outstanding at end of period	2,463,000
Restricted stock nonvested outstanding, Weighted average remaining contractual terms	4 years 26 days
Unrecognized compensation expense related to nonvested restricted stock awards	$ 1,600,000
1997 Stock Incentive Plan [Member] | Stock Options [Member]
Weighted Average Exercise Price [Roll Forward]
Options vested and exercisable (in shares)	6,000