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

Quarterly report [Sections 13 or 15(d)]

Stockholders' Equity and Stock Compensation Plans - Schedule of recognized equity-based compensation (Details)

Stockholders' Equity and Stock Compensation Plans - Schedule of recognized equity-based compensation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2026	Sep. 30, 2025	Sep. 30, 2026	Sep. 30, 2025
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Payment Arrangement, Expense, after Tax	$ 782	$ 553	$ 1,427	$ 1,085
Income tax benefit recoganized	187	127	328	248
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Payment Arrangement, Expense, after Tax	735	517	1,327	1,006
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-Based Payment Arrangement, Expense, after Tax	$ 47	$ 36	$ 100	$ 79

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details