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Basis of Presentation | 9 Months Ended
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Dec. 31, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract] |
Basis of Presentation | NOTE 1 – BASIS OF PRESENTATION: Graham Corporation's (the "Company's") Condensed Consolidated Financial Statements include its (i) wholly-owned foreign subsidiary located in Suzhou, China and (ii) wholly-owned domestic subsidiary located in Lapeer, Michigan. The Condensed Consolidated Financial Statements have been prepared in accordance with accounting principles generally accepted in the U.S. ("GAAP") for interim financial information and the instructions to Form 10-Q and Rule 10-01 of Regulation S-X, each as promulgated by the Securities and Exchange Commission. The Company's Condensed Consolidated Financial Statements do not include all information and notes required by GAAP for complete financial statements. The unaudited Condensed Consolidated Balance Sheet as of March 31, 2018 presented herein was derived from the Company’s audited Consolidated Balance Sheet as of March 31, 2018. For additional information, please refer to the consolidated financial statements and notes included in the Company's Annual Report on Form 10-K for the fiscal year ended March 31, 2018 ("fiscal 2018"). In the opinion of management, all adjustments, including normal recurring accruals considered necessary for a fair presentation, have been included in the Company's Condensed Consolidated Financial Statements. The Company's results of operations and cash flows for the three and nine months ended December 31, 2018 are not necessarily indicative of the results that may be expected for the current fiscal year, which ends March 31, 2019 ("fiscal 2019"). Certain reclassifications have been made to prior year amounts to conform to the current year presentation. See Note 15 which discusses the Company’s application of the amended guidance related to the classification of pension and other postretirement benefit costs. In the third quarter of fiscal 2019, the Company established Graham India Private Limited (“GIPL”) as a wholly-owned subsidiary. GIPL, located in Ahmedabad, India, will serve as a sales and market development office focusing on the refining, petrochemical and fertilizer markets.

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- Definition The entire disclosure for organization, consolidation and basis of presentation of financial statements disclosure. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -URI http://asc.fasb.org/topic&trid=2122149 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -URI http://asc.fasb.org/topic&trid=2197479 + Details
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