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Term Loan Obligations - Term Loan Outstanding (Details) - Term Loan [Member] - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
May 29, 2015
Additional details relating term loan that is outstanding [Abstract]      
Origination Date May 29, 2015 May 29, 2015  
Original Loan Amount $ 17,700 $ 17,700 $ 17,700
Interest Rate [1] 8.95% 8.95%  
Current Monthly Payment $ 100 [2] $ 100 [3]  
Original Term 48 months 48 months  
Remaining Principal (Face Value) $ 12,980 $ 12,980  
[1] 3 month LIBOR rate with a floor of 1% plus 7.95%
[2] Monthly payment as of December 2018, which reflects interest only
[3] Monthly payment as of December 2017, which reflects interest only