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Stock Based Compensation (Details) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Total stock-based compensation expense $ 278,000 $ 64,000 $ 802,000 $ (282,000)
Unrecognized compensation expense $ 1,600,000   $ 1,600,000  
2005 Equity Incentive Plan [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares authorized under plan approved by directors (in shares) 235,000   235,000  
2005 Equity Incentive Plan [Member] | Performance Based Restricted Stock [Member]
       
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares authorized under plan approved by directors (in shares) 105,000   105,000