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Note 9 - Prepaid Expenses and Other (Tables)
3 Months Ended
Dec. 31, 2022
Notes Tables  
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]
   

December 31,

   

September 30,

 
   

2022

   

2022

 

Deposits for inventory

  $ 171     $ 461  

Prepaid insurance

    255       360  

Dues and subscriptions

    183       182  

Prepaid commissions

    265       228  

Trade shows and travel

    171       471  

Canadian goods and services and harmonized sales tax receivable

    1,707       1,631  

Other

    184       244  
    $ 2,936     $ 3,577