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Construction Backlog (Tables)

12 Months Ended

Dec. 31, 2020

Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]

Schedule of backlog of signed construction and engineering contracts

			2020				2019
	Balance - beginning of period		$	17,634,261			$	97,657,379
	New contracts and change orders during the period			13,816,785				17,659,053
	Adjustments and cancellations, net			(27,370	)			(94,697,336	)
	Subtotal			31,423,676				20,619,096
	Less: contract revenue earned during the period			(6,306,215	)			(2,984,835	)
	Balance - end of period		$	25,117,461			$	17,634,261

Construction Backlog [Member]

Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]

Summary of expects to satisfy remaining unsatisfied performance obligation

			2020
	Within 1 year		$	12,261,211
	1 to 2 years			12,856,250
	Thereafter			—
	Total Backlog		$	25,117,461