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Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2018
Commitments And Contingencies Disclosure [Abstract]  
Future Minimum Lease Payments Future minimum lease payments for all operating leases as of December 31, 2018 are as follows (in thousands):

 

2019

 

 

498

 

2020

 

 

508

 

2021

 

 

518

 

2022

 

 

529

 

2023

 

 

716

 

Thereafter

 

 

4,203

 

Total

 

$

6,972