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Note 4 - Revenue Recognition (Tables)
12 Months Ended
Sep. 30, 2023
Notes Tables  
Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]
   

Customer

deposits

   

Deferred

revenue

   

Total contract

liabilities

 

Balance as of September 30, 2022

  $ 4,724     $ 2,054     $ 6,778  

New performance obligations

    12,550       4,456       17,006  

Recognition of revenue as a result of satisfying performance obligations

    (16,510 )     (3,278 )     (19,788 )

Effect of exchange rate on deferred revenue

    2       22       24  

Balance as of September 30, 2023

  $ 766     $ 3,254     $ 4,020  

Less: non-current portion

    -       (551 )     (551 )

Current portion as of September 30, 2023

  $ 766     $ 2,703     $ 3,469