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1. Significant Accounting Policies (Tables)
6 Months Ended
Jun. 30, 2020
Accounting Policies [Abstract]  
Restricted cash
   

June 30,

2020

   

June 30,

2019

 
Cash and cash equivalents   $ 4,989     $ 2,508  
Restricted cash     100       100  
Total cash, cash equivalents, and restricted cash shown in the condensed                
   consolidated statement of cash flows   $ 5,089     $ 2,608  
Property and equipment
Computer and office equipment 2 to 5 years
Computer software 3 years
Furniture and fixtures 4 years
Building 39 years
Leasehold improvements 2 to 5 years