Significant Accounting Policies (Tables)

3 Months Ended

Dec. 31, 2019

Accounting Policies [Abstract]

Schedule of Concentration Risk

Two customers accounted for more than 10.0% of consolidated revenues for the three months ended December 31, 2019 and 2018, as follows:

	% of Consolidated Revenues
	for the Three Months Ended December 31,
	2019		2018
Alabama Department of Transportation	10.8	%	9.6	%
North Carolina Department of Transportation	8.5	%	14.2	%

Schedule of Revenue by Major Customers

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

	% of Consolidated Revenues For the Three Months Ended December 31,
	2019		2018
Private	39.4	%	32.1	%
Public	60.6	%	67.9	%