Annual report pursuant to Section 13 and 15(d)

Long-Term Debt (Details Textual)

v3.8.0.1
Long-Term Debt (Details Textual) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 12 Months Ended
Dec. 31, 2016
Dec. 30, 2016
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 30, 2017
Dec. 31, 2014
Success Fee Expenses $ 250            
Share Price $ 8.00     $ 8.00      
Contingent Success Fee Liability     $ 39        
Restricted Cash and Cash Equivalents     5,472        
Cash and Cash Equivalents, at Carrying Value $ 16,846   27,813 $ 16,846 $ 19,552   $ 25,190
Accretion Expense     96 $ 0 $ 0    
Long-term Debt     $ 6,969        
Debt Instrument, Interest Rate During Period     9.05%        
Loan Agreement [Member]              
Line of Credit Facility, Maximum Borrowing Capacity           $ 7,000  
Debt Instrument, Basis Spread on Variable Rate     5.41%        
Debt Instrument, Maturity Date     Jan. 01, 2021        
Debt Instrument, Debt Default, Description of Violation or Event of Default   30-day U.S. LIBOR plus 5.41%          
Accretion Expense     $ 97        
Long-term Debt     $ 245