Quarterly report pursuant to Section 13 or 15(d)

Contract Assets and Contract Liabilities - Changes in Contract Assets and Liabilities (Details)

v3.19.3
Contract Assets and Contract Liabilities - Changes in Contract Assets and Liabilities (Details)
9 Months Ended
Sep. 30, 2019
USD ($)
Revenue From Contract With Customer [Abstract]  
Cumulative adjustment due to changes in contract values $ 2,181,108
Cumulative adjustment due to changes in estimated costs at completion (3,543,060)
Revenue recognized in the period 95,269,782
Amounts reclassified to receivables (92,520,798)
Impairment of contract assets 350,577
Total $ 1,737,609