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PROPERTY, PLANT AND EQUIPMENT | 12 Months Ended
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Sep. 30, 2025
PROPERTY, PLANT AND EQUIPMENT |
PROPERTY, PLANT AND EQUIPMENT |
13. | PROPERTY, PLANT AND EQUIPMENT
Property, plant and equipment consist of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | September 30, | ​ | September 30,
​ | ​ ​ ​ | 2025 | ​ ​ ​ | 2024
​ | ​ | ​ | ​ | ​ | ​ | ​
Land | ​ | $ | 3,569,840 | ​ | $ | 3,258,838
Buildings and leasehold improvements | ​ |  | 12,376,476 | ​ |  | 11,534,943
Operating equipment and vehicles | ​ |  | 98,037,108 | ​ |  | 75,768,103
Office equipment, furniture and fixtures | ​ |  | 1,054,451 | ​ |  | 1,235,965
Assets not yet in service | ​ |  | 411,097 | ​ |  | 87,772
​ | ​ |  | 115,448,972 | ​ |  | 91,885,621
Less accumulated depreciation | ​ |  | 61,981,005 | ​ |  | 53,749,907
​ | ​ | ​ | ​ | ​ | ​ | ​
Property, plant and equipment, net | ​ | $ | 53,467,967 | ​ | $ | 38,135,714
​

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 360 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/360/tableOfContent Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 6 -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477798/958-360-50-6 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477798/958-360-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Name Accounting Standards Codification -Section 50 -Paragraph 7 -SubTopic 360 -Topic 958 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477798/958-360-50-7 + Details
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