Accounts Receivable (Tables)

12 Months Ended

Dec. 31, 2017

Accounts Receivable [Abstract]

Summary of accounts receivable

	2017			2016
Billed:
Construction revenue	$	2,470,526		$	124,713
Engineering services		196,008			144,040
Retainage receivable		373,576			-
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