Quarterly report pursuant to Section 13 or 15(d)

Revenue from contracts with customers (Details textual)

v3.8.0.1
Revenue from contracts with customers (Details textual) - USD ($)
$ in Thousands
Mar. 31, 2018
Jan. 02, 2018
Dec. 31, 2017
Retained Earnings (Accumulated Deficit) $ (31,802)   $ (31,979)
Adoption of ASC 606 [Member]      
Retained Earnings (Accumulated Deficit)   $ 100