Construction Backlog (Details) - USD ($)		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016
Construction Backlog [Abstract]
Balance - beginning of period		$ 541,291	$ 105,851
New contracts and change orders during the period		81,179,323	807,786
Construction backlog, gross		81,720,614	913,637
Less: contract revenue earned during the period		(5,061,585)	(372,346)
Construction backlog, net		76,659,029	541,291
Contracts signed but not started	[1]
Balance - end of period		$ 76,659,029	$ 541,291

[1] 3 NTG: What is this line meant to include?