Quarterly report pursuant to Section 13 or 15(d)

Lease Obligations - Additional Information (Details)

v3.19.1
Lease Obligations - Additional Information (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended
Aug. 31, 2015
Mar. 31, 2019
Mar. 31, 2018
Debt Instrument [Line Items]      
Base rent   $ 0  
Rent increase per annum   3.00%  
Renewal term   5 years  
Aggregate principal   $ 4,523  
Rent expense   $ 140 $ 143
Finance Lease      
Debt Instrument [Line Items]      
Aggregate principal $ 166    
Stated percentage 4.70%    
Minimum monthly payments $ 3