Construction Backlog (Details) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Construction Backlog [Abstract]
Balance - beginning of period	$ 97,657,379	$ 76,659,029
New contracts and change orders during the period	145,745	58,805,877
Adjustments and cancellations, net	(24,571,359)	(29,616,815)
Subtotal	73,231,765	105,848,091
Less: contract revenue earned during the period	(2,463,032)	(8,190,712)
Balance - end of period	$ 70,768,733	$ 97,657,379