Accounts Receivable (Tables)

9 Months Ended

Sep. 30, 2020

Accounts Receivable [Abstract]

Summary of accounts receivable

	2020			2019
Billed:
Construction services	$	4,475,588		$	1,321,575
Engineering services		5,232			14,594
Retainage receivable		615,136			544,911
Other receivable		26,959			6,000
Total gross receivables		5,122,915			1,887,080
Less: allowance for credit losses		(785,895	)		(785,895	)
Total net receivables	$	4,337,020		$	1,101,185