Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt (Details Textual)

v3.7.0.1
Long-Term Debt (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 6 Months Ended
Dec. 31, 2016
Jun. 30, 2017
Jun. 30, 2017
Jun. 30, 2016
Dec. 31, 2015
Success Fee Expenses $ 250        
Share Price $ 8.00        
Contingent Success Fee Liability $ 37        
Restricted Cash and Cash Equivalents   $ 7,518 $ 7,518    
Cash and Cash Equivalents, at Carrying Value 16,846 10,701 10,701 $ 4,661 $ 19,552
Debt Instrument, Unused Borrowing Capacity, Amount   3,000 3,000    
Accretion Expense     48 $ 0  
Long-term Debt   $ 6,878 $ 6,878    
Debt Instrument, Interest Rate During Period   8.98% 8.88%    
Loan Agreement [Member]          
Line of Credit Facility, Maximum Borrowing Capacity $ 7,000        
Debt Instrument, Description of Variable Rate Basis 30-day U.S. LIBOR rate plus 5.41%        
Debt Instrument, Maturity Date     Jan. 01, 2021    
Long-term Debt   $ 245 $ 245