Construction Backlog (Tables)

12 Months Ended

Dec. 31, 2019

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

Schedule of backlog of signed construction and engineering contracts

	2019			2018
Balance - beginning of period	$	97,657,379		$	76,659,029
New contracts and change orders during the period		17,659,053			58,805,877
Adjustments and cancellations, net		(94,697,336	)		(29,616,815	)
Subtotal		20,619,096			105,848,091
Less: contract revenue earned during the period		(2,984,835	)		(8,190,712	)
Balance - end of period	$	17,634,261		$	97,657,379

Construction Backlog [Member]

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

Summary of expects to satisfy remaining unsatisfied performance obligation

	2019
Within 1 year	$	1,535,611
1 to 2 years		8,384,900
Thereafter		7,713,750
Total Backlog	$	17,634,261