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Note 13 - Stock-based Compensation (Tables)
3 Months Ended
Mar. 31, 2024
Notes Tables  
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]
  

Three Months Ended March 31,

 
  

2024

  

2023

 
  

(in thousands)

 

Cost of revenue

 $871  $670 

Sales and marketing

  2,284   2,201 

General and administrative

  4,967   4,382 

Research and development

  1,336   851 

Total stock-based compensation

 $9,458  $8,104 
Schedule of Share-Based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block]
  March 5, 
  2024 
Expected life (in years)  6.11 
Expected volatility  55.85%
Risk-free rate  4.10%
Dividend yield