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New Accounting Pronouncements | 3 Months Ended
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Dec. 31, 2025
Accounting Changes and Error Corrections [Abstract] |
New Accounting Pronouncements | New Accounting Pronouncements In December 2023, the FASB issued ASU 2023-09, "Income Taxes (Topic 740): Improvements to Income Tax Disclosures" which provides guidance on the requirements such as the requirement that public business entities on an annual basis (1) disclose specific categories in the rate reconciliation and (2) provide additional information for reconciling items that meet a quantitative threshold. DLH is a public company that reports income tax disclosures and therefore this ASU applies to the Company. ASU 2023-09 is effective for public business entities for fiscal years beginning after December 15, 2024. We will adopt ASU 2023-09 in our Annual Report on Form 10-K for the fiscal year ending September 30, 2026. We are currently evaluating the impacts of the improvements to income tax disclosure. In March 2024, the Securities and Exchange Commission ("SEC") released a final rule that requires registrants to provide comprehensive climate-related disclosures in their annual reports and registration statements, including those for IPOs, beginning with annual reports for the year ending December 31, 2027, for smaller reporting companies ("SRC"). Registrants must disclose climate-related financial metrics and impacts on their financial estimates and assumptions in a footnote to the audited financial statements. The disclosures will also need to be addressed as part of management’s internal control over financial reporting ("ICFR") and will be subject to the financial statement and ICFR audit (if applicable) of an independent registered public accounting firm. We are currently evaluating the impacts of the improvements to our disclosure. In November 2024, the FASB issued ASU 2024-03, "Income Statement—Reporting Comprehensive Income (Subtopic 220-40): Expense Disaggregation Disclosures." To enhance transparency in financial reporting by requiring public business entities to disclose disaggregated information about expenses in their financial statements. The guidance mandates disclosure of specific cost components, such as inventory purchases, employee compensation, depreciation, and amortization, within relevant income statement expense captions, along with qualitative descriptions of any remaining undissected amounts. Entities must also disclose total selling expenses and define these annually. Effective for annual reporting periods beginning after December 15, 2026, and interim periods in 2027, the ASU allows prospective or retrospective application and permits early adoption. We are currently evaluating the impacts of the improvements to our disclosure.

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- Definition The entire disclosure for change in accounting principle. 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