Quarterly report pursuant to Section 13 or 15(d)

Contract Assets and Contract Liabilities - Summary of Contract Assets and Liabilities (Details)

v3.19.3
Contract Assets and Contract Liabilities - Summary of Contract Assets and Liabilities (Details) - USD ($)
9 Months Ended
Sep. 30, 2019
Dec. 31, 2018
Revenue From Contract With Customer [Abstract]    
Contract assets $ 13,188,343 $ 12,030,000
Contract liabilities (1,265,783) (1,845,049)
Net contract assets 11,922,560 $ 10,184,951
Change in contract assets 1,158,343  
Change in contract liabilities 579,266  
Total $ 1,737,609