Quarterly report pursuant to Section 13 or 15(d)

Sales, Contract Assets and Contract Liabilities (Details)

v3.19.2
Sales, Contract Assets and Contract Liabilities (Details)
3 Months Ended
Jun. 30, 2019
USD ($)
Total recognized sales revenues $ 4,764,235
Specified service works [Member]  
Total recognized sales revenues
Certified design and engineering works [Member]  
Total recognized sales revenues 1,672,927
Delivered equipment to customers, net of obligations [Member]  
Total recognized sales revenues 2,788,212
Commissioned equipment [Member]  
Total recognized sales revenues $ 303,096