Construction Backlog (Details Textual)	3 Months Ended
	Jun. 30, 2019 USD ($)	Dec. 31, 2018 USD ($)	Sep. 30, 2017 USD ($) Number
Construction Backlog (Textual)
Number of large contracts | Number			2
Total Backlog	$ 70,768,733
Contract One [Member]
Construction Backlog (Textual)
Construction backlog contract amount			$ 55,000,000
Contract Two [Member]
Construction Backlog (Textual)
Construction backlog contract amount			$ 15,000,000
Moved Contract [Member]
Construction Backlog (Textual)
Construction backlog contract amount	$ 25,000,000.0	$ 27,500,000