Stock-Based Compensation Plan (Details) (USD $)	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)	255,000
Share based compensation expense	$ 194,000	$ 123,000
Stock Options [Member]
Shares [Roll Forward]
Outstanding at beginning of year (in shares)	160,171
Granted (in shares)	0
Exercised (in shares)	0
Forfeited (in shares)	(78,000)
Outstanding at end of period (in shares)	82,171
Weighted Average Exercise Price [Roll Forward]
Outstanding at beginning of year (in dollars per share)	$ 20.40
Granted (in dollars per share)	$ 0
Exercised (in dollars per share)	$ 0
Forfeited (in dollars per share)	$ (23.64)
Outstanding at end of period (in dollars per share)	$ 18.39
Aggregate Intrinsic Value [Abstract]
Outstanding at end of period	0
Options vested and exercisable (in shares)	79,671
Weighted average remaining contractual term for options	5 years 1 month 6 days
2006 Equity Compensation Plan [Member] | Stock Options [Member]
Aggregate Intrinsic Value [Abstract]
Options vested and exercisable (in shares)	57,671
Non vested stock option (in shares)	2,500
Unrecognized compensation expense related to nonvested stock options awards	2,000
2006 Equity Compensation Plan [Member] | Restricted Stock [Member]
Shares [Roll Forward]
Outstanding at beginning of year (in shares)	86,220
Granted (in shares)	49,475
Vested (in shares)	(12,432)
Forfeited (in shares)	(2,808)
Non-vested at end of period (in shares)	120,455
Weighted Average Grant-Date Fair Value [Roll Forward]
Outstanding at beginning of year (in dollars per share)	$ 14.79
Granted (in dollars per share)	$ 16.86
Vested (in dollars per share)	$ (12.43)
Forfeited (in dollars per share)	$ 14.59
Outstanding at end of period (in dollars per share)	$ 15.66
Aggregate Intrinsic Value [Abstract]
Outstanding at end of period	2,047,735
Restricted stock nonvested outstanding, Weighted average remaining contractual terms	4 years 4 months 24 days
Unrecognized compensation expense related to nonvested restricted stock awards	$ 1,591,000
1997 Stock Incentive Plan [Member] | Stock Options [Member]
Aggregate Intrinsic Value [Abstract]
Options vested and exercisable (in shares)	22,000
Non vested stock option (in shares)	0