Quarterly report pursuant to Section 13 or 15(d)

Sales, Contract Assets and Contract Liabilities (Details Textual)

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Sales, Contract Assets and Contract Liabilities (Details Textual)
9 Months Ended
Dec. 31, 2019
USD ($)
Sales, Contract Assets and Contract Liabilities (Textual)  
Payments and accruals under contracts includes presented as receivables $ 11,433,348