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Stock-Based Compensation (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2016
Mar. 10, 2016
Apr. 20, 2015
Mar. 31, 2016
Dec. 31, 2015
Apr. 30, 2015
Jan. 12, 2015
Restricted Stock [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Restricted stock issued (in shares)   559,000          
2006 Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Shares authorized 4,500,000     4,500,000 3,500,000 3,500,000  
Expiration period (in years)       10 years      
Shares available to be issued 50,732     50,732      
Stock options outstanding (in shares) 766,906     766,906      
Shares of restricted stock outstanding (in shares) 701,870     701,870      
Non-Plan [Member] | Chief Operating Officer [Member] | Restricted Stock [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Restricted stock issued (in shares) 300,000            
Non-Plan [Member] | Employee Stock Option [Member] | Chief Operating Officer [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Options granted (in shares) 450,000            
The Rights Plan [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Dividend, right             1
Redemption price of right (in dollars per share)     $ 0.01        
Payments for redemption of rights     $ 246        
The Rights Plan [Member] | Series A Preferred Stock [Member]              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Number of securities called by each warrant or right             0.001
Exercise price of rights (in dollars per share)             $ 15