Quarterly report pursuant to Section 13 or 15(d)

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
 3 Months Ended
Jun. 30, 2018
Schedule of Accounts Receivable [Table Text Block]
      June 30. 2018     March 31, 2018  
  Trade receivables $ 2,987,511   $ 2,639,095  
  Less: Allowance for doubtful accounts   (40,000 )   (40,000 )
  Net accounts receivable $ 2,947,511   $ 2,599,095  
Schedule of Inventory, Current [Table Text Block]
      June 30,     March 31,  
      2018     2018  
  Raw materials $ 1,031,485   $ 766,556  
  Finished goods   226,412     235,464  
  Total inventory $ 1,257,897   $ 1,002,020  
Straight-line Method of Depreciation [Table Text Block]
Equipment 5 years
Equipment under capital lease 5 years