Quarterly report pursuant to Section 13 or 15(d)

NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

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NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
6 Months Ended
Sep. 30, 2021
Accounting Policies [Abstract]  
Schedule of accounts receivable [Table Text Block]
 
    September 30, 2021     March 31, 2021  
    (unaudited)        
Trade receivables, net $ 11,323,231   $ 8,798,176  
Less: Allowance for doubtful accounts   (340,000 )   (340,000 )
Net accounts receivable $ 10,983,231   $ 8,458,176  
Schedule of inventory current [Table Text Block]
    September 30, 2021     March 31, 2021  
    (unaudited)        
Raw materials $ 4,146,330   $ 3,055,091  
Finished goods   2,131,514     1,352,629  
Total inventory $ 6,277,844   $ 4,407,720