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Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2018
Commitments and Contingencies [Abstract]  
Schedule of Future Minimum Rental Payments for Operating Leases
 
For the Year Ending
December 31
 
(in thousands)
2019
$
657

2020
637

2021
646

2022
658

2023

Thereafter

Total
$
2,598