Quarterly report pursuant to Section 13 or 15(d)

Sales, Contract Assets and Contract Liabilities (Details Textual)

v3.19.3
Sales, Contract Assets and Contract Liabilities (Details Textual)
6 Months Ended
Sep. 30, 2019
USD ($)
Sales, Contract Assets and Contract Liabilities (Textual)  
Payments and accruals under contracts includes presented as receivables $ 13,101,107