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Note 5 - Intangible Assets (Tables)
3 Months Ended
Dec. 31, 2023
Notes Tables  
Schedule of Finite-Lived Intangible Assets [Table Text Block]
  As of December 31, 2023  As of September 30, 2023 

Domain and trade names

 $615  $629 

Customer related

  3,466   3,678 

Technology

  463   583 

Balance at end of period

 $4,544  $4,890