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Note 4 - Revenue Recognition (Tables)
12 Months Ended
Sep. 30, 2022
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, 2021

  $ 8,701     $ 1,428     $ 10,129  

New performance obligations

    14,394       2,832       17,226  

Recognition of revenue as a result of satisfying performance obligations

    (18,371 )     (2,179 )     (20,550 )

Effect of exchange rate on deferred revenue

    -       (27 )     (27 )

Balance as of September 30, 2022

  $ 4,724     $ 2,054     $ 6,778  

Less: non-current portion

    -       (227 )     (227 )

Current portion as of September 30, 2022

  $ 4,724     $ 1,827     $ 6,551