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Note 20 - Major Customers, Suppliers and Related Information (Tables)
3 Months Ended
Dec. 31, 2020
Notes Tables  
Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area [Table Text Block]
   
Three months ended December 31,
 
   
2020
   
2019
 
Americas
  $
6,014
    $
6,804
 
Asia Pacific
   
1,011
     
1,548
 
Europe, Middle East and Africa
   
1,003
     
430
 
Total Revenues
  $
8,028
    $
8,782