XML 30 R20.htm IDEA: XBRL DOCUMENT v3.22.2.2
Note 2 - Summary of Significant Accounting Policies (Tables)
9 Months Ended
Sep. 30, 2022
Notes Tables  
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
  

Three Months Ended

  

Nine Months Ended

 
  

September 30,

  

September 30,

 
  

2022

  

2021

  

2022

  

2021

 

Operating Expenses

                

Research and development

 $256  $229  $676  $693 

General and administrative

  383   398   1,308   979 

Total

 $639  $627  $1,984  $1,672