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

March 31,

  

September 30,

 
  

2022

  

2021

 

Deposits for inventory

 $201  $997 

Prepaid insurance

  473   395 

Dues and subscriptions

  233   213 

Prepaid professional services

  79   158 

Prepaid commissions

  159   82 

Trade shows and travel

  143   95 

Other

  191   315 
  $1,479  $2,255