Significant Accounting Policies (Tables)

9 Months Ended

Jun. 30, 2020

Accounting Policies [Abstract]

Schedule of Concentration Risk

ustomers that accounted for more than 10.0% of consolidated revenues during those periods are presented below.

	% of Consolidated Revenues
	For the Three Months Ended June 30,				For the Nine Months Ended June 30,
	2020		2019		2020		2019
Alabama Department of Transportation	13.2	%	15.4	%	11.1	%	12.9	%
North Carolina Department of Transportation	9.0	%	13.9	%	8.4	%	13.4	%

Schedule of Revenue by Major Customers

The following table reflects, for the periods presented, (i) the percentage of revenues generated from public infrastructure construction projects and the sale of construction materials to public customers and (ii) the percentage of revenues generated from private infrastructure construction projects and the sale of construction materials to private customers.

	% of Consolidated Revenues
	For the Three Months Ended June 30,				For the Nine Months Ended June 30,
	2020		2019		2020		2019
Private	30.9	%	29.1	%	36.1	%	30.4	%
Public	69.1	%	70.9	%	63.9	%	69.6	%