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Note 6 - Accounts Receivable, Net (Tables)
12 Months Ended
Dec. 31, 2023
Notes Tables  
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
  

December 31,

  

December 31,

 
  

2023

  

2022

 
  

(in thousands)

 

Trade receivables

 $60,508  $47,046 

Current unbilled receivables

  26,295   20,153 

Allowance for doubtful accounts

  (926)  (725)
  $85,877  $66,474