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7. Leases (Tables)
12 Months Ended
Dec. 31, 2019
Leases [Abstract]  
Lease costs
   

December 31,

2019

 
Operating lease cost   $ 573  
Short-term lease cost     2  
Variable lease cost     128  
Total lease cost   $ 703  
Supplemental cash flow information

Supplemental cash flow information related to leases was as follows:

 

   

 December 31,

2019

 
Cash paid for amounts included in the measurement of lease liabilities:      
Operating cash flows (fixed payments)   $ 522  
Operating cash flows (liability reduction)   $ 369  

 

Other information related to operating leases was as follows:

 

   

December 31,

2019

 
Weighted average remaining lease term (in years)     6.23  
Weighted average discount rate     5.50 %

 

Schedule of future minimum rental payments
   

December 31,

2019

 
2020   $ 522  
2021     552  
2022     439  
2023     448  
2024     456  
Thereafter     1,190  
Total payments     3,607  
Less: imputed interest     632  
Total liability   $ 2,975