ACQUISITIONS - Tangible and intangible assets acquired and liabilities assumed, the purchase price allocations (Details) - USD ($)	Jun. 30, 2022	Sep. 30, 2021
Business Acquisition [Line Items]
Property, Plant and Equipment, Net, Total	$ 29,560,421	$ 22,950,019
Goodwill	4,087,554	1,814,317
Intangible assets, net	4,010,557	$ 2,425,923
Tri-State Paving Acquisition Company
Business Acquisition [Line Items]
Property, Plant and Equipment, Net, Total	5,709,094
Goodwill	2,273,237
Purchase price	9,874,663
Tri-State Paving Acquisition Company | Non-competes
Business Acquisition [Line Items]
Intangible assets, net	39,960
Tri-State Paving Acquisition Company | Customer relationships
Business Acquisition [Line Items]
Intangible assets, net	1,649,159
Tri-State Paving Acquisition Company | Tradename
Business Acquisition [Line Items]
Intangible assets, net	$ 203,213