Accounts Receivable (Details) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Summary of accounts receivable
Total gross receivables	$ 3,040,110	$ 268,753
Less: allowance for doubtful accounts	(34,235)	(34,235)
Total net receivables	3,005,875	234,518
Construction revenue [Member]
Summary of accounts receivable
Total gross receivables	2,470,526	124,713
Engineering services [Member]
Summary of accounts receivable
Total gross receivables	196,008	144,040
Retainage receivable [Member]
Summary of accounts receivable
Total gross receivables	$ 373,576