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Note 6 - Leases (Tables)
6 Months Ended
Sep. 30, 2019
Notes Tables  
Lessee, Operating Lease, Liability, Maturity [Table Text Block]
For the twelve-month period ending September 30,
 
Amount
 
2020
  $
101,875
 
2021
   
101,875
 
2022
   
101,875
 
2023
   
103,125
 
2024
   
106,875
 
Thereafter
   
400,781
 
         
    $
916,406