v3.22.2.2
Note 1 - Organization and Summary of Significant Accounting Policies (Tables)
9 Months Ended
Sep. 30, 2022
Notes Tables  
Schedule of Cash and Cash Equivalents [Table Text Block]
  

Balance as of

 
  

September 30, 2022

  

December 31, 2021

 

Cash and cash equivalents

 $12,732  $7,663 

Restricted cash

  5,000    

Restricted cash, net of current portion

     5,000 

Total cash, cash equivalents, and restricted cash

 $17,732  $12,663 
  

Balance as of

 
  

September 30, 2021

  

December 31, 2020

 

Cash and cash equivalents

 $8,271  $22,274 

Restricted cash

  5,000   5,000 

Total cash, cash equivalents, and restricted cash

 $13,271  $27,274