Graham Corporation Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

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

Equity-Based Compensation - Additional Information (Detail)

v3.24.0.1

Equity-Based Compensation - Additional Information (Detail) - shares		3 Months Ended		9 Months Ended
	Aug. 11, 2020	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023
Two Thousand Incentive Plan [Member] \| Stock Compensation Plan [Member] \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized		722,000		722,000
Two Thousand Incentive Plan [Member] \| Stock Compensation Prior Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remaining available shares under equity based compensation plan		112,000		112,000
Two Thousand Incentive Plan [Member] \| Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option awards granted	0
Two Thousand Incentive Plan [Member] \| Restricted Stock [Member] \| Performance Vested Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted Stock, Granted		0	0
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum discount on purchase price of common stock percentage on fair market value				15.00%
Common stock may be purchased		400		400

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The number of shares originally approved that may be purchased by employees under the company employee stock purchase plan.

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Gross number of share options (or share units) granted during the period.

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