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Stockholders Equity - Stock Incentive Plans - Additional Information (Details) - USD ($)
1 Months Ended 3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2015
Mar. 31, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
May. 31, 2015
Stockholders Equity Note [Line Items]              
Stock option compensation expense         $ 135,000 $ 257,000  
Restricted stock compensation expense   $ 46,000     68,000 60,000  
Recognized compensation expense       $ 20,000   60,000  
Stock Options [Member]              
Stockholders Equity Note [Line Items]              
Maximum term of options     10 years        
Stock option compensation expense   $ 33,000   $ 100,000 $ 100,000 $ 300,000  
Stock options granted         500,000 0  
Restricted Stock [Member]              
Stockholders Equity Note [Line Items]              
Stock options granted         600,000 0  
2004 Stock Incentive Plan [Member]              
Stockholders Equity Note [Line Items]              
Shares reserved for the issuance (in shares) 187,500 187,500     187,500    
2009 Stock Incentive Plan [Member]              
Stockholders Equity Note [Line Items]              
Shares reserved for the issuance (in shares) 1,506,250 1,506,250     1,506,250   406,250
Increased number of shares (in shares) 1,100,000            
Shares available for grant 161,712 161,712     161,712