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Significant Accounting Policies (Tables) | 9 Months Ended
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Jun. 30, 2025
Accounting Policies [Abstract] |
Schedule of Cash and Cash Equivalents | The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the Consolidated Balance Sheets that sum to the total of the same such amounts shown in the Consolidated Statements of Cash Flows (unaudited, in thousands):
|  | June 30, 2025 |  | September 30, 2024 |  |
Cash and cash equivalents |  | $ | 114,336 |  |  | $ | 74,686 |  |  |
Restricted cash |  | 1,969 |  |  | 1,998 |  |  |
Total cash, cash equivalents, and restricted cash |  | $ | 116,305 |  |  | $ | 76,684 |  |  |
Schedule of Restricted Cash | The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported within the Consolidated Balance Sheets that sum to the total of the same such amounts shown in the Consolidated Statements of Cash Flows (unaudited, in thousands):
|  | June 30, 2025 |  | September 30, 2024 |  |
Cash and cash equivalents |  | $ | 114,336 |  |  | $ | 74,686 |  |  |
Restricted cash |  | 1,969 |  |  | 1,998 |  |  |
Total cash, cash equivalents, and restricted cash |  | $ | 116,305 |  |  | $ | 76,684 |  |  |
Schedule of Concentration Risk | Customers that accounted for more than 10% of consolidated revenues during the three and nine months ended June 30, 2025 and 2024 are presented below:
|  | % of Consolidated Revenues
|  | For the Three Months Ended June 30, |  | For the Nine Months Ended June 30,
|  | 2025 |  | 2024 |  | 2025 |  | 2024
North Carolina Department of Transportation |  | * |  | 12.5% |  | * |  | 10.3%
Florida Department of Transportation |  | * |  | 13.4% |  | * |  | 13.9%
* Less than 10%
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 June 30, |  | For the Nine Months Ended June 30,
|  | 2025 |  | 2024 |  | 2025 |  | 2024
Private |  | 35.1 | % |  | 35.6 | % |  | 39.0 | % |  | 39.2 | %
Public |  | 64.9 | % |  | 64.4 | % |  | 61.0 | % |  | 60.8 | %

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- Definition Tabular disclosure of cash and cash equivalents restricted as to withdrawal or usage. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(2)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478777/944-210-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(1)(a)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 8 -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482913/230-10-50-8 + Details
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- Definition Tabular disclosure of the extent of the entity's reliance on its major customers, if revenues from transactions with a single external customer amount to 10 percent or more of entity revenues, including the disclosure of that fact, the total amount of revenues from each such customer, and the identity of the reportable segment or segments reporting the revenues. The entity need not disclose the identity of a major customer or the amount of revenues that each segment reports from that customer. For these purposes, a group of companies known to the entity to be under common control is considered a single customer, and the federal government, a state government, a local government such as a county or municipality, or a foreign government is each considered a single customer. + References No definition available. + Details
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