Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Details Textual)

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Stockholders' Equity (Details Textual) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2016
Dec. 31, 2015
Mar. 08, 2016
Class of Stock [Line Items]      
Common stock, shares authorized 12,000,000 8,000,000  
Proceeds from issuance of private placement and public offering $ 6,251 $ 6,251  
Minimum [Member]      
Class of Stock [Line Items]      
Common stock, shares authorized     8,000,000
Maximum [Member]      
Class of Stock [Line Items]      
Common stock, shares authorized     12,000,000