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Note 11 - Stock-based Compensation (Tables)
3 Months Ended 12 Months Ended
Mar. 31, 2024
Dec. 31, 2023
Notes Tables    
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
  

Three months ended March 31,

 
  

2024

  

2023

 

Cost of revenue

 $  $61 

Research and development

  1,209   2,278 

Sales and marketing

  182   1,368 

General and administrative

  1,623   2,806 

Total stock-based compensation

 $3,014  $6,513 
  

Twelve months ended December 31,

 
  

2023

  

2022

 

Research and development

 $6,821  $7,201 

Sales and marketing

  2,993   4,696 

General and administrative

  8,121   11,931 

Cost of revenue

  136   131 

Total stock-based compensation

 $18,071  $23,959