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Note 5 - Goodwill (Tables)
12 Months Ended
Mar. 31, 2022
Notes Tables  
Schedule of Goodwill [Table Text Block]
  

 

Goodwill

 
March 31, 2020 $1,719 
NEPSI Acquisition  32,915 

March 31, 2021

 $34,634 

Neeltran Acquisition

  8,837 

March 31, 2022

 $43,471