Quarterly report pursuant to Section 13 or 15(d)

Liquidity (Details Textual)

v3.8.0.1
Liquidity (Details Textual) - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
Mar. 31, 2017
Dec. 31, 2016
Accumulated deficit $ (31,802) $ (31,979)    
Cash and cash equivalents $ 1,143 $ 1,548 $ 472 $ 918