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Note 2 - Assets Held For Sale (Tables)
12 Months Ended
Mar. 31, 2021
Disposal Group, Held-for-sale, Not Discontinued Operations [Member]  
Notes Tables  
Disposal Groups, Including Discontinued Operations [Table Text Block]
  

March 31, 2021

 
     

Property, Plant and Equipment (net)

 $8,656 

Current Assets Held For Sale

 $8,656