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Note 9 - Prepaid Expenses and Other (Tables)
6 Months Ended
Mar. 31, 2023
Notes Tables  
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Table Text Block]
   

March 31,

   

September 30,

 
   

2023

   

2022

 

Deposits for inventory

  $ 101     $ 461  

Prepaid insurance

    270       360  

Dues and subscriptions

    271       182  

Prepaid commissions

    387       228  

Trade shows and travel

    211       471  

Canadian goods and services and harmonized sales tax receivable

    115       1,631  

Other

    258       244  
    $ 1,613     $ 3,577