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Note 6. Leases (Tables)
3 Months Ended
Mar. 31, 2020
Leases [Abstract]  
Lease expense
   Three months ended
   March 31,
   2020  2019
Lease expense          
Operating lease expense  $87   $41 
Variable lease expense   32    42 
Rent expense  $119   $83 
Future minimum lease payments
Year Ended December 31:   
 2020   $288 
 2021    394 
 2022    359 
 2023    369 
 2024    379 
 Thereafter    1,201 
 Total lease payments   $2,990 
 Present value adjustment    (380)
 Lease liability    2,610