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Note 10 - Accrued and Other Liabilities (Tables)
12 Months Ended
Sep. 30, 2022
Notes Tables  
Schedule of Accrued Liabilities [Table Text Block]
   

September 30,

 
   

2022

   

2021

 

Payroll and related

  $ 3,003     $ 3,726  

Deferred revenue

    1,827       1,120  

Customer deposits

    4,724       8,701  

Accrued contract costs

    809       416  

Warranty reserve

    159       146  

Canadian goods and services and harmonized sales tax payable

    1,556       -  

Other

    5       2  

Total

  $ 12,083     $ 14,111  
Other Noncurrent Liabilities [Table Text Block]
   

September 30,

 
   

2022

   

2021

 

Deferred extended warranty revenue

  $ 227     $ 308  

Asset purchase holdback liability

    680       687  

Total

  $ 907     $ 995  
Schedule of Product Warranty Liability [Table Text Block]
   

September 30,

 
   

2022

   

2021

 

Beginning balance

  $ 146     $ 126  

Warranty provision

    86       56  

Warranty settlements

    (73 )     (36 )

Ending balance

  $ 159     $ 146