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Debt (Tables)
 3 Months Ended
Mar. 31, 2017
Debt Disclosure [Abstract]  
Schedule of Long-term Debt Instruments
Long-term debt consisted of the following at March 31, 2017 and December 31, 2016 (in thousands):
 
March 31, 2017
 
December 31, 2016
Senior secured loans (includes unamortized discount of $1,440 and $1,442 based on an imputed interest rate of 6.4% and 6.6%, at March 31, 2017 and December 31, 2016, respectively)
$
57,176

 
$
47,929

Less current maturities
(2,685
)
 
(2,190
)
Total long-term debt
$
54,491

 
$
45,739
Schedule of Maturities of Long-term Debt
Future debt maturities of long-term debt (excluding financing costs) at March 31, 2017 are as follows (in thousands):
Year ending December 31:
 
Remaining 2017
$
2,264

2018
3,019

2019
3,019

2020
3,019

2021
47,295

Thereafter
—

 
$
58,616