Graham Corporation Quarterly report [Sections 13 or 15(d)]

Quarterly report [Sections 13 or 15(d)]

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Notes Tables
Notes Details

Income Taxes - Additional Information (Detail)

v3.26.3

Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025	Mar. 31, 2026
Income Taxes [Line Items]
Liability unrecognized tax benefits	$ 0		$ 0		$ 0
Effective income tax rate	22.00%	27.00%	16.00%	17.00%
Income before taxes	$ 5,970	$ 4,223	$ 10,153	$ 9,236
Federal Tax Jurisdictions [Member]
Income Taxes [Line Items]
Open tax year			2022 2023 2024 2025
State Tax Jurisdictions [Member]
Income Taxes [Line Items]
Open tax year			2021 2022 2023 2024 2025
International Tax Jurisdictions [Member] \| State Administration of Taxation, China [Member]
Income Taxes [Line Items]
Open tax year			2022 2023 2024 2025
International Tax Jurisdictions [Member] \| Ministry of Finance, India [Member]
Income Taxes [Line Items]
Open tax year			2022 2023 2024 2025

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Income taxes.

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Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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