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Commitments and Contingencies (Tables)
12 Months Ended
Dec. 31, 2018
Commitments and Contingencies  
Total minimum lease payments

Total minimum lease payments under these leases as of December 31, 2018 are summarized below (in thousands):

 

 

 

 

 

 

    

Lease Payments

 

2019

 

$

198

 

2020

 

 

161

 

2021

 

 

 9

 

2022

 

 

 6

 

 

 

$

374