Construction Backlog (Tables)

6 Months Ended

Jun. 30, 2018

Construction Backlog [Abstract]

Schedule of backlog of signed construction and engineering contracts

	June 30, 2018			December 31,  2017
Balance – beginning of period	$	76,659,029		$	541,291
New contracts and change orders during the period		30,061,551			81,179,323
Subtotal		106,720,580			81,720,614
Less: contract revenue earned during the period		(3,849,325	)		(5,061,585	)
Balance – end of period	$	102,871,255		$	76,659,029