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Note 22 - Sales and Major Customers (Tables)
12 Months Ended
Jan. 31, 2022
Notes Tables  
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]
  

Year Ended January 31,

 
  

2022

  

2021

 

UK/Europe

 $8,174  $8,005 

Canada

  273   1,267 

Latin America

  325    

Asia/South Pacific

  11,244   6,523 

Eurasia

  647   507 

Other

  35   1,226 

Total

 $20,698  $17,528