Quarterly report pursuant to Section 13 or 15(d)

Related Party Transactions (Details Textual)

v3.8.0.1
Related Party Transactions (Details Textual) - USD ($)
shares in Thousands, $ in Thousands
1 Months Ended 3 Months Ended 12 Months Ended
Sep. 19, 2017
Mar. 31, 2018
Dec. 31, 2017
Angel Pond Capital LLC [Member]      
Payments for Other Fees   $ 45 $ 2,150
Puissance Cross-Border Opportunities II LLC [Member]      
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners 34.00%    
Puissance Cross-Border Opportunities II LLC [Member] | Rights Offering [Member]      
Stock Issued During Period, Shares, New Issues 20,535    
Stock Issued During Period, Value, New Issues $ 20,535