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Note 19 - Major Customers, Suppliers and Related Information (Tables)
9 Months Ended
Jun. 30, 2023
Notes Tables  
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]
   

Three months ended June 30,

   

Nine months ended June 30,

 
   

2023

   

2022

   

2023

   

2022

 

Americas

  $ 13,189     $ 12,674     $ 32,371     $ 32,205  

Asia Pacific

    491       514       1,795       2,969  

Europe, Middle East and Africa

    582       964       1,796       2,823  

Total Revenues

  $ 14,262     $ 14,152     $ 35,962     $ 37,997  
Long-Lived Assets by Geographic Areas [Table Text Block]
   

March 31,

   

September 30,

 
   

2023

   

2022

 

United States

  $ 10,207     $ 11,800  

Americas (excluding the United States)

    10       16  

Asia Pacific

    -       -  

Europe, Middle East and Africa

    407       446  
    $ 10,624     $ 12,262