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Note 5 - Goodwill (Tables)
12 Months Ended
Mar. 31, 2023
Notes Tables  
Schedule of Goodwill [Table Text Block]
  

 

Goodwill

 
March 31, 2021 $34,634 
Neeltran Acquisition  8,837 

March 31, 2022

 $43,471 

Less impairment loss

  - 

March 31, 2023

 $43,471