Cover Page - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Mar. 31, 2024 |
Jun. 05, 2024 |
Sep. 30, 2023 |
|
| Document Information [Line Items] | |||
| Document Type | 10-K/A | ||
| Amendment Flag | true | ||
| Document Period End Date | Mar. 31, 2024 | ||
| Document Fiscal Year Focus | 2024 | ||
| Document Fiscal Period Focus | FY | ||
| Trading Symbol | GHM | ||
| Entity Registrant Name | GRAHAM CORPORATION | ||
| Entity Central Index Key | 0000716314 | ||
| Current Fiscal Year End Date | --03-31 | ||
| Entity Well-known Seasoned Issuer | No | ||
| Entity Current Reporting Status | Yes | ||
| Document Financial Statement Error Correction [Flag] | false | ||
| Entity Voluntary Filers | No | ||
| Entity Filer Category | Accelerated Filer | ||
| Entity Shell Company | false | ||
| Entity Emerging Growth Company | false | ||
| Entity Small Business | true | ||
| Title of 12(b) Security | Common Stock, Par Value $0.10 Per Share | ||
| Security Exchange Name | NYSE | ||
| Entity File Number | 001-08462 | ||
| Entity Tax Identification Number | 16-1194720 | ||
| Entity Incorporation, State or Country Code | DE | ||
| Entity Address, Address Line One | 20 Florence Avenue | ||
| Entity Address, City or Town | Batavia | ||
| Entity Address, State or Province | NY | ||
| Entity Address, Postal Zip Code | 14020 | ||
| City Area Code | 585 | ||
| Local Phone Number | 343-2216 | ||
| Entity Interactive Data Current | Yes | ||
| ICFR Auditor Attestation Flag | true | ||
| Document Annual Report | true | ||
| Document Transition Report | false | ||
| Entity Common Stock, Shares Outstanding | 10,870,564 | ||
| Entity Public Float | $ 168.0 | ||
| Auditor Name | DELOITTE & TOUCHE LLP | ||
| Auditor Location | Rochester, New York | ||
| Auditor Firm ID | 34 | ||
| Amendment Description | Graham Corporation (the “Company”) is filing this Amendment No.1 on Form 10-K/A to its Annual Report on Form 10-K for the fiscal year ended March 31, 2024 (the “Original Filing”), which was filed with the Securities and Exchange Commission (“SEC”) on June 7, 2024, solely for the purpose of adding the conformed signature of Deloitte & Touche LLP to the Report of Independent Registered Public Accounting Firm included in Item 8 and Part 9A of Part II of the Original Filing (the “Audit Reports”). The signed Audit Reports were received by the Company prior to the Original Filing being filed with the SEC, but the conformed signature in the Audit Reports was inadvertently omitted from the Original Filing. Pursuant to Rule 12b-15 of the Securities Exchange Act of 1934, as amended, this Amendment No. 1 contains the complete text of Item 15. Exhibits, Financial Statement Schedules and certifications of the Company’s Principal Executive Officer and Principal Financial Officer required under Items 302 and 906 of the Sarbanes-Oxley Act of 2002, as amended, dated as of the date of this Amendment. Except as expressly set forth in this Amendment No. 1, no other changes have been made to the Original Filing, and this Form 10-K/A does not modify, amend or update in any way any of the financial or other information contained in the Original Filing. This Form 10-K/A does not reflect events that may have occurred subsequent to the filing date of the Original Filing. |