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Interim Period Reporting (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Oct. 13, 2015
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Interim Period Reporting (Textual)        
Net loss   $ (1,367) $ (2,072)  
Accumulated deficit   (175,116)   $ (173,749)
Net cash used in operating activities   $ 21 $ (1,585)  
Issuance of common stock, shares 3,200,000      
Share price $ 1.90      
Gross proceeds from issuance of shares $ 6,100      
Cash received from issuance of shares 5,400      
Stock issuance cost $ 700      
Common stock available for issuance under shelf registration   1,800,000    
Working capital   $ 118,000   $ 1,500