Construction Backlog (Details Textual) - USD ($)	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2017	Dec. 31, 2016
Construction Backlog (Textual)
Large contracts entered		$ 79,547,622	$ 807,786
Contract One [Member]
Construction Backlog (Textual)
Large contracts entered	$ 55,000,000
Contract Two [Member]
Construction Backlog (Textual)
Large contracts entered	$ 15,000,000