Construction Backlog (Tables)

9 Months Ended

Sep. 30, 2019

Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]

Schedule of backlog of signed construction and engineering contracts

	September 30, 2019			December 31, 2018
Balance - beginning of period	$	97,657,379		$	76,659,029
New contracts and change orders during the period, net		17,474,684			58,805,877
Adjustments and cancellations, net		(94,697,335	)		(29,616,815	)
Subtotal		20,434,728			105,848,091
Less: contract revenue earned during the period		(2,647,558	)		(8,190,712	)
Balance - end of period	$	17,787,170		$	97,657,379

Construction Backlog [Member]

Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]

Schedule of expects to satisfy remaining unsatisfied performance obligation

	2019
Within 1 year	$	4,250,770
1 to 2 years		13,536,400
Thereafter		—
Total Backlog	$	17,787,170