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Stock Compensation (Details Textual) (USD $)
In Thousands, except Share data, unless otherwise specified
 3 Months Ended 6 Months Ended 3 Months Ended 6 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2012
Dec. 31, 2011
Jun. 30, 2012
Restricted Stock Awards [Member]
Jun. 30, 2011
Restricted Stock Awards [Member]
Jun. 30, 2012
Restricted Stock Awards [Member]
Jun. 30, 2011
Restricted Stock Awards [Member]
Jun. 30, 2012
Unvested Restricted Stock Awards [Member]
Jun. 30, 2012
Key Employees [Member]
Jun. 30, 2012
Key Employees [Member]
Maximum [Member]
Jun. 30, 2012
Key Employees [Member]
Minimum [Member]
Jun. 30, 2012
Independent Directors [Member]
Jun. 30, 2012
Independent Directors [Member]
Maximum [Member]
Jun. 30, 2012
Independent Directors [Member]
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                            
Aggregate grant, maximum, shares       500,000   500,000                
Compensation Expenses       $ 73 $ 49 $ 132 $ 102              
Total unrecognized compensation cost               681            
Stock incentive plan, vesting per year, percentage                 0.25%     0.33%    
Vested period                   4 years 1 year   3 years 1 year
Vesting percentage on fourth anniversary of grant for key employees                 100.00%          
Vesting percentage on third anniversary of grant for independent directors                       100.00%    
Unrecognized compensation cost related to nonvested stock options granted               0            
Stock Compensation (Textual) [Abstract]                            
Vesting rights   For key employees, the plan vesting is one-fourth of the granted options or restricted stock per year beginning one year after the grant date, with 100% vested on the fourth anniversary of the grant. For independent directors, the vesting schedule is one-third of the granted options per year beginning one year after the grant date, with 100% vested on the third anniversary of the grant.                        
Employee service share based compensation nonvested awards compensation cost not yet recognized share based awards options $ 0 $ 0                        
Stock options that were fully vested and exercisable 107,375 107,375 107,375