$GHM
GRAHAM CORP Stock $ghm

$ghm Overview Financials Valuation SEC Filings Company Website

2024 Q2 Form 10-K Financial Statement

#000095017024070222 Filed on June 07, 2024

Income Statement

Concept	2024 Q2	2024 Q1	2024
Revenue	$49.95M	$49.07M	$185.5M
YoY Change	5.01%	14.04%	18.09%
Cost Of Revenue	$37.58M	$36.38M	$144.9M
YoY Change	2.71%	1.41%	10.05%
Gross Profit	$12.37M	$12.69M	$40.59M
YoY Change	12.67%	77.36%	59.73%
Gross Profit Margin	24.76%	25.87%	21.87%
Selling, General & Admin	$8.838M	$10.58M	$32.22M
YoY Change	25.92%	46.18%	39.69%
% of Gross Profit	71.46%	83.31%	79.38%
Research & Development			$3.944M
YoY Change			-4.83%
% of Gross Profit			9.72%
Depreciation & Amortization	$857.0K	$1.570M	$3.275M
YoY Change	-30.83%	3.36%	-6.72%
% of Gross Profit	6.93%	12.37%	8.07%
Operating Expenses	$8.838M	$11.09M	$36.16M
YoY Change	21.18%	47.72%	32.91%
Operating Profit	$3.224M	$1.602M	$6.922M
YoY Change	-12.49%	-555.11%	453.76%
Interest Expense	$161.0K	$29.00K	$248.0K
YoY Change	-187.03%	-111.98%	-76.78%
% of Operating Profit	4.99%	1.81%	3.58%
Other Income/Expense, Net	-$91.00K	-$94.00K	-$374.0K
YoY Change	-2.15%	-251.61%	-249.6%
Pretax Income	$3.294M	$1.459M	$5.574M
YoY Change	-3.29%	-374.25%	893.58%
Income Tax	$328.0K	$119.0K	$1.018M
% Of Pretax Income	9.96%	8.16%	18.26%
Net Earnings	$2.966M	$1.340M	$4.556M
YoY Change	12.35%	-378.59%	1141.42%
Net Earnings / Revenue	5.94%	2.73%	2.46%
Basic Earnings Per Share	$0.27		$0.42
Diluted Earnings Per Share	$0.27	$0.12	$0.42
COMMON SHARES
Basic Shares Outstanding	10.87M	10.83M	10.74M
Diluted Shares Outstanding	10.96M		10.84M

Balance Sheet

Concept	2024 Q2	2024 Q1	2024
SHORT-TERM ASSETS
Cash & Short-Term Investments	$21.61M	$16.94M	$16.94M
YoY Change	-12.37%	-7.22%	-7.22%
Cash & Equivalents	$21.61M	$16.94M	$16.94M
Short-Term Investments
Other Short-Term Assets	$4.011M	$3.561M	$3.561M
YoY Change	49.94%	132.14%	132.14%
Inventory	$32.76M	$33.41M	$33.41M
Prepaid Expenses
Receivables	$36.77M	$44.40M	$72.42M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$135.2M	$126.3M	$126.3M
YoY Change	15.21%	14.77%	14.77%
LONG-TERM ASSETS
Property, Plant & Equipment	$34.00M	$32.08M	$39.39M
YoY Change	0.07%	25.69%	16.66%
Goodwill	$25.52M	$25.52M
YoY Change	8.49%	8.49%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$1.192M	$724.0K	$10.10M
YoY Change	-85.32%	358.23%	11.48%
Total Long-Term Assets	$109.0M	$107.6M	$107.6M
YoY Change	17.58%	14.6%	14.6%
TOTAL ASSETS
Total Short-Term Assets	$135.2M	$126.3M	$126.3M
Total Long-Term Assets	$109.0M	$107.6M	$107.6M
Total Assets	$244.2M	$233.9M	$233.9M
YoY Change	16.25%	14.69%	14.69%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$19.51M	$20.79M	$20.79M
YoY Change	29.33%	2.8%	2.8%
Accrued Expenses	$6.265M	$6.666M	$24.70M
YoY Change	-63.48%	3.61%	38.34%
Deferred Revenue	$87.66M	$71.99M
YoY Change	56.49%	56.35%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$20.00K	$0.00	$20.00K
YoY Change	-99.01%	-100.0%	-99.01%
Total Short-Term Liabilities	$126.2M	$118.2M	$118.2M
YoY Change	39.68%	37.19%	37.19%
LONG-TERM LIABILITIES
Long-Term Debt	$60.00K	$0.00	$65.00K
YoY Change	-99.36%	-100.0%	-99.34%
Other Long-Term Liabilities	$2.308M	$2.332M	$10.04M
YoY Change	-78.19%	14.2%	-7.78%
Total Long-Term Liabilities	$2.308M	$2.332M	$10.10M
YoY Change	-88.44%	14.2%	-51.23%
TOTAL LIABILITIES
Total Short-Term Liabilities	$126.2M	$118.2M	$118.2M
Total Long-Term Liabilities	$2.308M	$2.332M	$10.10M
Total Liabilities	$136.0M	$128.3M	$128.3M
YoY Change	23.27%	19.94%	19.94%
SHAREHOLDERS EQUITY
Retained Earnings	$84.97M	$82.00M
YoY Change	6.1%	5.88%
Common Stock	$33.46M	$33.11M
YoY Change	12.57%	13.65%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$3.344M	$2.534M
YoY Change	31.97%	16.08%
Treasury Stock Shares
Shareholders Equity	$108.2M	$105.6M	$105.6M
YoY Change
Total Liabilities & Shareholders Equity	$244.2M	$233.9M	$233.9M
YoY Change	16.25%	14.69%	14.69%

Cashflow Statement

Concept	2024 Q2	2024 Q1	2024
OPERATING ACTIVITIES
Net Income	$2.966M	$1.340M	$4.556M
YoY Change	12.35%	-378.59%	1141.42%
Depreciation, Depletion And Amortization	$857.0K	$1.570M	$3.275M
YoY Change	-30.83%	3.36%	-6.72%
Cash From Operating Activities	$8.716M	$8.637M	$28.12M
YoY Change	1.31%	73.85%	102.1%
INVESTING ACTIVITIES
Capital Expenditures	$2.978M	$4.033M	$9.226M
YoY Change	98.67%	197.64%	146.09%
Acquisitions	$170.0K		$6.812M
YoY Change
Other Investing Activities	-$170.0K	$6.000K	-$6.768M
YoY Change
Cash From Investing Activities	-$3.148M	-$4.027M	-$15.99M
YoY Change	110.01%	197.2%	326.62%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			-$418.0K
YoY Change			-2090.48%
Debt Paid & Issued, Net	$0.00		$25.50M
YoY Change	-100.0%		131.82%
Cash From Financing Activities	-889.0K	-2.820M	-13.39M
YoY Change	38.47%	9.51%	107.9%
NET CHANGE
Cash From Operating Activities	8.716M	8.637M	28.12M
Cash From Investing Activities	-3.148M	-4.027M	-15.99M
Cash From Financing Activities	-889.0K	-2.820M	-13.39M
Net Change In Cash	4.672M	1.790M	-1.318M
YoY Change	-27.7%	72.45%	-137.49%
FREE CASH FLOW
Cash From Operating Activities	$8.716M	$8.637M	$28.12M
Capital Expenditures	$2.978M	$4.033M	$9.226M
Free Cash Flow	$5.738M	$4.604M	$18.89M
YoY Change	-19.23%	27.43%	85.87%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
CY2024	dei	Amendment Flag AmendmentFlag	false
CY2024	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--03-31
CY2024	dei	Entity Central Index Key EntityCentralIndexKey	0000716314
CY2024	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2024Q1	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2023Q1	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2024	us-gaap	Hosting Arrangement Service Contract Implementation Cost Impairment Statement Of Income Extensible List HostingArrangementServiceContractImplementationCostImpairmentStatementOfIncomeExtensibleList	http://fasb.org/us-gaap/2023#OtherAssetsNoncurrent
CY2024Q1	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2024	dei	Document Type DocumentType	10-K
CY2024	dei	Document Annual Report DocumentAnnualReport	true
CY2024	dei	Document Period End Date DocumentPeriodEndDate	2024-03-31
CY2024	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2024
CY2024	dei	Document Transition Report DocumentTransitionReport	false
CY2024	dei	Entity File Number EntityFileNumber	001-08462
CY2024	dei	Entity Registrant Name EntityRegistrantName	GRAHAM CORPORATION
CY2024	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2024	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	16-1194720
CY2024	dei	Entity Address Address Line1 EntityAddressAddressLine1	20 Florence Avenue
CY2024	dei	Entity Address City Or Town EntityAddressCityOrTown	Batavia
CY2024	dei	Entity Address State Or Province EntityAddressStateOrProvince	NY
CY2024	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	14020
CY2024	dei	City Area Code CityAreaCode	585
CY2024	dei	Local Phone Number LocalPhoneNumber	343-2216
CY2024	dei	Security12b Title Security12bTitle	Common Stock, Par Value $0.10 Per Share
CY2024	dei	Trading Symbol TradingSymbol	GHM
CY2024	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2024	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2024	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2024	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2024	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2024	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2024	dei	Entity Small Business EntitySmallBusiness	true
CY2024	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2024	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2024	dei	Document Fin Stmt Error Correction Flag DocumentFinStmtErrorCorrectionFlag	false
CY2024	dei	Entity Shell Company EntityShellCompany	false
CY2023Q3	dei	Entity Public Float EntityPublicFloat	168000000
CY2024Q2	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	10870564
CY2024	dei	Auditor Firm AuditorFirmId	34
CY2024	dei	Auditor Location AuditorLocation	Rochester, New York
CY2024	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	185533000
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	157118000
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	122814000
CY2024	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	144948000
CY2023	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	131710000
CY2022	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	113685000
CY2024	us-gaap	Gross Profit GrossProfit	40585000
CY2023	us-gaap	Gross Profit GrossProfit	25408000
CY2022	us-gaap	Gross Profit GrossProfit	9129000
CY2024	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	32217000
CY2023	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	23063000
CY2022	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	20386000
CY2024	ghm	Selling General And Administrative Amortization Expense SellingGeneralAndAdministrativeAmortizationExpense	1366000
CY2023	ghm	Selling General And Administrative Amortization Expense SellingGeneralAndAdministrativeAmortizationExpense	1095000
CY2022	ghm	Selling General And Administrative Amortization Expense SellingGeneralAndAdministrativeAmortizationExpense	913000
CY2024	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-80000
CY2023	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	0
CY2022	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	827000
CY2024	us-gaap	Operating Income Loss OperatingIncomeLoss	6922000
CY2023	us-gaap	Operating Income Loss OperatingIncomeLoss	1250000
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	-11343000
CY2024	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-726000
CY2023	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0
CY2022	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0
CY2024	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	374000
CY2023	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	-250000
CY2022	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	-527000
CY2024	us-gaap	Interest Expense InterestExpense	248000
CY2023	us-gaap	Interest Expense InterestExpense	939000
CY2022	us-gaap	Interest Expense InterestExpense	400000
CY2024	ghm	Other Expenses And Income OtherExpensesAndIncome	1348000
CY2023	ghm	Other Expenses And Income OtherExpensesAndIncome	689000
CY2022	ghm	Other Expenses And Income OtherExpensesAndIncome	-127000
CY2024	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	5574000
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	561000
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-11216000
CY2024	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1018000
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	194000
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-2443000
CY2024	us-gaap	Net Income Loss NetIncomeLoss	4556000
CY2023	us-gaap	Net Income Loss NetIncomeLoss	367000
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-8773000
CY2024	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.42
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.03
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.83
CY2024	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.42
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.03
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.83
CY2024	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	10743000
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	10614000
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	10541000
CY2024	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	10844000
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	10654000
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	10541000
CY2024	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0
CY2023	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0
CY2022	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.33
CY2024	us-gaap	Net Income Loss NetIncomeLoss	4556000
CY2023	us-gaap	Net Income Loss NetIncomeLoss	367000
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-8773000
CY2024	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-244000
CY2023	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-492000
CY2022	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	198000
CY2024	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	194000
CY2023	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-149000
CY2022	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	209000
CY2024	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-694000
CY2023	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	500000
CY2022	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-728000
CY2024	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	450000
CY2023	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-992000
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	926000
CY2024	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	5006000
CY2023	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-625000
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-7847000
CY2024Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	16939000
CY2023Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	18257000
CY2024Q1	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	79000
CY2023Q1	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	1841000
CY2024Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	44400000
CY2023Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	24000000
CY2024Q1	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	28015000
CY2023Q1	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	39684000
CY2024Q1	us-gaap	Inventory Net InventoryNet	33410000
CY2023Q1	us-gaap	Inventory Net InventoryNet	26293000
CY2024Q1	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	3561000
CY2023Q1	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	1836000
CY2024Q1	us-gaap	Assets Current AssetsCurrent	126325000
CY2023Q1	us-gaap	Assets Current AssetsCurrent	110070000
CY2024Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	32080000
CY2023Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	25523000
CY2024Q1	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	6396000
CY2023Q1	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	6107000
CY2024Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	7306000
CY2023Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	8237000
CY2024Q1	us-gaap	Goodwill Goodwill	25520000
CY2023Q1	us-gaap	Goodwill Goodwill	23523000
CY2024Q1	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	7181000
CY2023Q1	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	7610000
CY2024Q1	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	2983000
CY2023Q1	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	2798000
CY2024Q1	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	724000
CY2023Q1	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	158000
CY2024Q1	us-gaap	Assets Assets	233879000
CY2023Q1	us-gaap	Assets Assets	203918000
CY2024Q1	us-gaap	Long Term Debt Current LongTermDebtCurrent	0
CY2023Q1	us-gaap	Long Term Debt Current LongTermDebtCurrent	2000000
CY2024Q1	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	20000
CY2023Q1	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	29000
CY2024Q1	us-gaap	Accounts Payable Current AccountsPayableCurrent	20788000
CY2023Q1	us-gaap	Accounts Payable Current AccountsPayableCurrent	20222000
CY2024Q1	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	16800000
CY2023Q1	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	10401000
CY2024Q1	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	6666000
CY2023Q1	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	6434000
CY2024Q1	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	71987000
CY2023Q1	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	46042000
CY2024Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	1237000
CY2023Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	1022000
CY2024Q1	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	715000
CY2023Q1	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	16000
CY2024Q1	us-gaap	Liabilities Current LiabilitiesCurrent	118213000
CY2023Q1	us-gaap	Liabilities Current LiabilitiesCurrent	86166000
CY2024Q1	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	0
CY2023Q1	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	9744000
CY2024Q1	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	65000
CY2023Q1	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	85000
CY2024Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	6449000
CY2023Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	7498000
CY2024Q1	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	1254000
CY2023Q1	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	1342000
CY2024Q1	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	2332000
CY2023Q1	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	2150000
CY2024Q1	us-gaap	Liabilities Liabilities	128313000
CY2023Q1	us-gaap	Liabilities Liabilities	106985000
CY2024Q1	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1
CY2023Q1	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1
CY2024Q1	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	500000
CY2023	ghm	Increase Decrease In Long Term Portion Of Accrued Compensation Accrued Pension Liability And Accrued Postretirement Benefits IncreaseDecreaseInLongTermPortionOfAccruedCompensationAccruedPensionLiabilityAndAccruedPostretirementBenefits	-628000
CY2022	ghm	Increase Decrease In Long Term Portion Of Accrued Compensation Accrued Pension Liability And Accrued Postretirement Benefits IncreaseDecreaseInLongTermPortionOfAccruedCompensationAccruedPensionLiabilityAndAccruedPostretirementBenefits	491000
CY2024	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	28120000
CY2023Q1	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	500000
CY2024Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.1
CY2023Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.1
CY2024Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	25500000
CY2023Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	25500000
CY2024Q1	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	10993000
CY2023Q1	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	10774000
CY2024Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	10850000
CY2023Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	10635000
CY2024Q1	us-gaap	Common Stock Value CommonStockValue	1099000
CY2023Q1	us-gaap	Common Stock Value CommonStockValue	1075000
CY2024Q1	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	32015000
CY2023Q1	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	28061000
CY2024Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	81999000
CY2023Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	77443000
CY2024Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-7013000
CY2023Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-7463000
CY2024Q1	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	143000
CY2023Q1	us-gaap	Treasury Stock Common Shares TreasuryStockCommonShares	138000
CY2024Q1	us-gaap	Treasury Stock Value TreasuryStockValue	2534000
CY2023Q1	us-gaap	Treasury Stock Value TreasuryStockValue	2183000
CY2024Q1	us-gaap	Stockholders Equity StockholdersEquity	105566000
CY2023Q1	us-gaap	Stockholders Equity StockholdersEquity	96933000
CY2024Q1	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	233879000
CY2023Q1	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	203918000
CY2024	us-gaap	Profit Loss ProfitLoss	4556000
CY2023	us-gaap	Profit Loss ProfitLoss	367000
CY2022	us-gaap	Profit Loss ProfitLoss	-8773000
CY2024	us-gaap	Depreciation Depreciation	3275000
CY2023	us-gaap	Depreciation Depreciation	3511000
CY2022	us-gaap	Depreciation Depreciation	3077000
CY2024	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2157000
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2476000
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2522000
CY2024	ghm	Virgin Orbit Reserves VirginOrbitReserves	-95000
CY2023	ghm	Virgin Orbit Reserves VirginOrbitReserves	-3050000
CY2022	ghm	Virgin Orbit Reserves VirginOrbitReserves	0
CY2024	ghm	Amortization Of Unrecognized Prior Service Cost And Actuarial Losses AmortizationOfUnrecognizedPriorServiceCostAndActuarialLosses	843000
CY2023	ghm	Amortization Of Unrecognized Prior Service Cost And Actuarial Losses AmortizationOfUnrecognizedPriorServiceCostAndActuarialLosses	672000
CY2022	ghm	Amortization Of Unrecognized Prior Service Cost And Actuarial Losses AmortizationOfUnrecognizedPriorServiceCostAndActuarialLosses	996000
CY2024	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	131000
CY2023	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	212000
CY2022	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	0
CY2024	us-gaap	Share Based Compensation ShareBasedCompensation	1279000
CY2023	us-gaap	Share Based Compensation ShareBasedCompensation	806000
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	809000
CY2024	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	5000
CY2023	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	0
CY2022	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-23000
CY2024	ghm	Change In Fair Value Of Contingent Consideration ChangeInFairValueOfContingentConsideration	80000
CY2023	ghm	Change In Fair Value Of Contingent Consideration ChangeInFairValueOfContingentConsideration	0
CY2022	ghm	Change In Fair Value Of Contingent Consideration ChangeInFairValueOfContingentConsideration	-1900000
CY2024	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	-726000
CY2023	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0
CY2022	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0
CY2024	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-472000
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-120000
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-3233000
CY2024	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	20724000
CY2023	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-1520000
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	2055000
CY2024	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	-11855000
CY2023	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	14228000
CY2022	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	-1550000
CY2024	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	6220000
CY2023	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	9919000
CY2022	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-3483000
CY2024	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	-998000
CY2023	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	-139000
CY2022	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	1208000
CY2024	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	2199000
CY2023	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	97000
CY2022	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	340000
CY2024	ghm	Increase Decrease In Operating Lease Right Of Use Asset IncreaseDecreaseInOperatingLeaseRightOfUseAsset	-1212000
CY2023	ghm	Increase Decrease In Operating Lease Right Of Use Asset IncreaseDecreaseInOperatingLeaseRightOfUseAsset	-1206000
CY2022	ghm	Increase Decrease In Operating Lease Right Of Use Asset IncreaseDecreaseInOperatingLeaseRightOfUseAsset	-1059000
CY2024	ghm	Increase Decrease In Defined Benefit Plan Assets For Plan Benefits Noncurrent IncreaseDecreaseInDefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	287000
CY2023	ghm	Increase Decrease In Defined Benefit Plan Assets For Plan Benefits Noncurrent IncreaseDecreaseInDefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	651000
CY2022	ghm	Increase Decrease In Defined Benefit Plan Assets For Plan Benefits Noncurrent IncreaseDecreaseInDefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	1207000
CY2024	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	401000
CY2023	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	3467000
CY2022	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-3238000
CY2024	ghm	Increase Decrease In Accrued Compensation Accrued Expenses And Other Current And Non Current Liabilities IncreaseDecreaseInAccruedCompensationAccruedExpensesAndOtherCurrentAndNonCurrentLiabilities	6011000
CY2023	ghm	Increase Decrease In Accrued Compensation Accrued Expenses And Other Current And Non Current Liabilities IncreaseDecreaseInAccruedCompensationAccruedExpensesAndOtherCurrentAndNonCurrentLiabilities	2654000
CY2022	ghm	Increase Decrease In Accrued Compensation Accrued Expenses And Other Current And Non Current Liabilities IncreaseDecreaseInAccruedCompensationAccruedExpensesAndOtherCurrentAndNonCurrentLiabilities	1164000
CY2024	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	25572000
CY2023	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	20526000
CY2022	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	5523000
CY2024	ghm	Increase Decrease In Operating Lease Liabilities IncreaseDecreaseInOperatingLeaseLiabilities	-1119000
CY2023	ghm	Increase Decrease In Operating Lease Liabilities IncreaseDecreaseInOperatingLeaseLiabilities	-1049000
CY2022	ghm	Increase Decrease In Operating Lease Liabilities IncreaseDecreaseInOperatingLeaseLiabilities	-962000
CY2024	ghm	Increase Decrease In Long Term Portion Of Accrued Compensation Accrued Pension Liability And Accrued Postretirement Benefits IncreaseDecreaseInLongTermPortionOfAccruedCompensationAccruedPensionLiabilityAndAccruedPostretirementBenefits	-45000
CY2023	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	13914000
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-2219000
CY2024	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	9226000
CY2023	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	3749000
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2324000
CY2024	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	44000
CY2023	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	0
CY2022	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	0
CY2024	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	0
CY2023	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	0
CY2022	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	5500000
CY2024	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	6812000
CY2023	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0
CY2022	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0
CY2024	ghm	Payments To Acquire Subsidiary Net Of Cash Acquired PaymentsToAcquireSubsidiaryNetOfCashAcquired	0
CY2023	ghm	Payments To Acquire Subsidiary Net Of Cash Acquired PaymentsToAcquireSubsidiaryNetOfCashAcquired	0
CY2022	ghm	Payments To Acquire Subsidiary Net Of Cash Acquired PaymentsToAcquireSubsidiaryNetOfCashAcquired	-60282000
CY2024	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-15994000
CY2023	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-3749000
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-57106000
CY2024	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	25500000
CY2023	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	11000000
CY2022	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	39750000
CY2024	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	13000000
CY2023	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	5000000
CY2022	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	58250000
CY2024	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	29000
CY2023	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	23000
CY2022	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	21000
CY2024	ghm	Repayments On Lease Financing Obligations RepaymentsOnLeaseFinancingObligations	287000
CY2023	ghm	Repayments On Lease Financing Obligations RepaymentsOnLeaseFinancingObligations	275000
CY2022	ghm	Repayments On Lease Financing Obligations RepaymentsOnLeaseFinancingObligations	225000
CY2024	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	752000
CY2023	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	0
CY2022	us-gaap	Payments Of Debt Extinguishment Costs PaymentsOfDebtExtinguishmentCosts	0
CY2024	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	241000
CY2023	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	122000
CY2022	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	271000
CY2024	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	476000
CY2023	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0
CY2022	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	0
CY2024	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	0
CY2023	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	0
CY2022	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	3523000
CY2024	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	58000
CY2023	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	21000
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	41000
CY2024	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-13391000
CY2023	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-6441000
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	14419000
CY2024	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	-53000
CY2023	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	-208000
CY2022	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	115000
CY2024	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-1318000
CY2023	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	3516000
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-44791000
CY2023Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	18257000
CY2022Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	14741000
CY2021Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	59532000
CY2024Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	16939000
CY2023Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	18257000
CY2022Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	14741000
CY2021Q1	us-gaap	Stockholders Equity StockholdersEquity	97929000
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-7847000
CY2022	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	3523000
CY2022	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	809000
CY2022	us-gaap	Treasury Stock Value Acquired Par Value Method TreasuryStockValueAcquiredParValueMethod	41000
CY2022	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	9167000
CY2022Q1	us-gaap	Stockholders Equity StockholdersEquity	96494000
CY2023	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-625000
CY2023	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	806000
CY2023	us-gaap	Treasury Stock Value Acquired Par Value Method TreasuryStockValueAcquiredParValueMethod	21000
CY2023	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	279000
CY2023Q1	us-gaap	Stockholders Equity StockholdersEquity	96933000
CY2024	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	5006000
CY2024	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	2406000
CY2024	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	1279000
CY2024	us-gaap	Treasury Stock Value Acquired Par Value Method TreasuryStockValueAcquiredParValueMethod	58000
CY2024Q1	us-gaap	Stockholders Equity StockholdersEquity	105566000
CY2024	ghm	Test Of Impairment More Likelihood Percentage TestOfImpairmentMoreLikelihoodPercentage	0.50
CY2024	us-gaap	Hosting Arrangement Service Contract Implementation Cost Impairment HostingArrangementServiceContractImplementationCostImpairment	361000
CY2024	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	3944000
CY2023	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	4144000
CY2022	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	3845000
CY2024	us-gaap	Net Income Loss NetIncomeLoss	4556000
CY2023	us-gaap	Net Income Loss NetIncomeLoss	367000
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-8773000
CY2024	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	10743000
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	10614000
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	10541000
CY2024	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.42
CY2023	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.03
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.83
CY2024	us-gaap	Net Income Loss NetIncomeLoss	4556000
CY2023	us-gaap	Net Income Loss NetIncomeLoss	367000
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-8773000
CY2024	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	10743000
CY2023	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	10614000
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	10541000
CY2024	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	101000
CY2023	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	40000
CY2024	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	10844000
CY2023	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	10654000
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	10541000
CY2024	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.42
CY2023	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.03
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.83
CY2022	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	33000
CY2024	us-gaap	Interest Paid Net InterestPaidNet	823000
CY2023	us-gaap	Interest Paid Net InterestPaidNet	1026000
CY2022	us-gaap	Interest Paid Net InterestPaidNet	417000
CY2024	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	425000
CY2023	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	185000
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	2012000
CY2024	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-694000
CY2023	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	500000
CY2022	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-728000
CY2024	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	620000
CY2023	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	483000
CY2022	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	177000
CY2024	ghm	Noncash Or Part Noncash Acquisition Equity Instrument Consideration Value Of Treasury Shares Issued NoncashOrPartNoncashAcquisitionEquityInstrumentConsiderationValueOfTreasurySharesIssued	1930000
CY2023	ghm	Noncash Or Part Noncash Acquisition Equity Instrument Consideration Value Of Treasury Shares Issued NoncashOrPartNoncashAcquisitionEquityInstrumentConsiderationValueOfTreasurySharesIssued	0
CY2022	ghm	Noncash Or Part Noncash Acquisition Equity Instrument Consideration Value Of Treasury Shares Issued NoncashOrPartNoncashAcquisitionEquityInstrumentConsiderationValueOfTreasurySharesIssued	8964000
CY2024	us-gaap	Use Of Estimates UseOfEstimates	<p style="font-size:10pt;margin-top:18pt;font-family:Times New Roman;margin-bottom:0;text-align:justify;"><span style="color:#000000;white-space:pre-wrap;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:italic;min-width:fit-content;">Use of Estimates</span></p><p style="text-indent:6.667%;font-size:10pt;margin-top:6pt;font-family:Times New Roman;margin-bottom:0;text-align:justify;"><span style="color:#000000;white-space:pre-wrap;font-size:10pt;font-family:Times New Roman;min-width:fit-content;">The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and reported amounts of sales and expenses during the reporting period. Actual results could differ materially from those estimates.</span></p>
CY2024	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	185533000
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	157118000
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	122814000
CY2024	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	185533000
CY2023	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	157118000
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	122814000
CY2024	ghm	Percentage Of Revenue From Contracts With Customers Excluding Assessed Tax Performance Obligation Satisfied Over Time PercentageOfRevenueFromContractsWithCustomersExcludingAssessedTaxPerformanceObligationSatisfiedOverTime	0.77
CY2023	ghm	Percentage Of Revenue From Contracts With Customers Excluding Assessed Tax Performance Obligation Satisfied Over Time PercentageOfRevenueFromContractsWithCustomersExcludingAssessedTaxPerformanceObligationSatisfiedOverTime	0.74
CY2022	ghm	Percentage Of Revenue From Contracts With Customers Excluding Assessed Tax Performance Obligation Satisfied Over Time PercentageOfRevenueFromContractsWithCustomersExcludingAssessedTaxPerformanceObligationSatisfiedOverTime	0.75
CY2024	ghm	Percentage Of Revenue From Contracts With Customers Excluding Assessed Tax Performance Obligation Satisfied At Point In Time PercentageOfRevenueFromContractsWithCustomersExcludingAssessedTaxPerformanceObligationSatisfiedAtPointInTime	0.23
CY2023	ghm	Percentage Of Revenue From Contracts With Customers Excluding Assessed Tax Performance Obligation Satisfied At Point In Time PercentageOfRevenueFromContractsWithCustomersExcludingAssessedTaxPerformanceObligationSatisfiedAtPointInTime	0.26
CY2022	ghm	Percentage Of Revenue From Contracts With Customers Excluding Assessed Tax Performance Obligation Satisfied At Point In Time PercentageOfRevenueFromContractsWithCustomersExcludingAssessedTaxPerformanceObligationSatisfiedAtPointInTime	0.25
CY2024Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	2218000
CY2024Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	1995000
CY2024Q1	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	28015000
CY2023Q1	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	39684000
CY2024	ghm	Change In Contract With Customer Asset ChangeInContractWithCustomerAsset	-11669000
CY2024Q1	ghm	Change Due To Amounts Acquired Contract Assets ChangeDueToAmountsAcquiredContractAssets	302000
CY2024Q1	ghm	Change Due To Revenue Recognized Contract Assets ChangeDueToRevenueRecognizedContractAssets	97828000
CY2024Q1	ghm	Change Due To Invoicing Customers Additional Deposits Contract Assets ChangeDueToInvoicingCustomersAdditionalDepositsContractAssets	-109799000
CY2024Q1	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	71987000
CY2023Q1	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	46042000
CY2024	ghm	Change In Contract With Customer Liability ChangeInContractWithCustomerLiability	25945000
CY2024Q1	ghm	Change Due To Amounts Acquired Contract Liabilities ChangeDueToAmountsAcquiredContractLiabilities	-389000
CY2024Q1	ghm	Change Due To Revenue Recognized Contract Liabilities ChangeDueToRevenueRecognizedContractLiabilities	29086000
CY2024Q1	ghm	Change Due To Invoicing Customers Additional Deposits Contract Liabilities ChangeDueToInvoicingCustomersAdditionalDepositsContractLiabilities	-54642000
CY2024Q1	ghm	Contract With Customer Net Asset Liability Current ContractWithCustomerNetAssetLiabilityCurrent	-43972000
CY2023Q1	ghm	Contract With Customer Net Asset Liability Current ContractWithCustomerNetAssetLiabilityCurrent	-6358000
CY2024	ghm	Change In Contract With Customer Asset Liability Net ChangeInContractWithCustomerAssetLiabilityNet	-37614000
CY2024Q1	ghm	Contract With Customer Receivables Billed But Not Paid Under Retainage ContractWithCustomerReceivablesBilledButNotPaidUnderRetainage	1875000
CY2023Q1	ghm	Contract With Customer Receivables Billed But Not Paid Under Retainage ContractWithCustomerReceivablesBilledButNotPaidUnderRetainage	2542000
CY2024Q1	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	390868000
CY2024Q1	us-gaap	Inventory Raw Materials InventoryRawMaterials	4396000
CY2023Q1	us-gaap	Inventory Raw Materials InventoryRawMaterials	4344000
CY2024Q1	us-gaap	Inventory Work In Process InventoryWorkInProcess	27065000
CY2023Q1	us-gaap	Inventory Work In Process InventoryWorkInProcess	20554000
CY2024Q1	us-gaap	Inventory Finished Goods InventoryFinishedGoods	1949000
CY2023Q1	us-gaap	Inventory Finished Goods InventoryFinishedGoods	1395000
CY2024Q1	us-gaap	Inventory Net InventoryNet	33410000
CY2023Q1	us-gaap	Inventory Net InventoryNet	26293000
CY2024Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	1953000
CY2024Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	1895000
CY2024Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	1895000
CY2024Q1	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	15889000
CY2024Q1	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	77191000
CY2023Q1	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	67478000
CY2024Q1	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	45111000
CY2023Q1	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	41955000
CY2024Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	32080000
CY2023Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	25523000
CY2024	us-gaap	Depreciation Depreciation	3275000
CY2023	us-gaap	Depreciation Depreciation	3511000
CY2022	us-gaap	Depreciation Depreciation	3077000
CY2024Q1	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	33000000
CY2024Q1	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	7155000
CY2024Q1	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	25845000
CY2024Q1	ghm	Indefinite Lived Intangible Assets Excluding Goodwill Gross IndefiniteLivedIntangibleAssetsExcludingGoodwillGross	6700000
CY2024Q1	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	6700000
CY2023Q1	us-gaap	Finite Lived Intangible Assets Gross FiniteLivedIntangibleAssetsGross	25800000
CY2023Q1	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	4998000
CY2023Q1	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	20802000
CY2023Q1	ghm	Indefinite Lived Intangible Assets Excluding Goodwill Gross IndefiniteLivedIntangibleAssetsExcludingGoodwillGross	6700000
CY2023Q1	us-gaap	Indefinite Lived Intangible Assets Excluding Goodwill IndefiniteLivedIntangibleAssetsExcludingGoodwill	6700000
CY2024	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2157000
CY2023	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2476000
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2522000
CY2024Q1	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	25845000
CY2023Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y
CY2024Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.033
CY2023Q1	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	578000
CY2022Q1	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	441000
CY2024	ghm	Product Warranty Income Expense ProductWarrantyIncomeExpense	410000
CY2023	ghm	Product Warranty Income Expense ProductWarrantyIncomeExpense	364000
CY2024	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	182000
CY2023	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	227000
CY2024Q1	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	806000
CY2023Q1	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	578000
CY2024	ghm	Lessee Operating Lease And Finance Lease Option To Renew Or Terminate LesseeOperatingLeaseAndFinanceLeaseOptionToRenewOrTerminate	Certain leases include options to renew or terminate. Renewal options are exercisable per the discretion of the Company and vary based on the nature of each lease.
CY2024	us-gaap	Operating Lease Payments OperatingLeasePayments	952000
CY2023	us-gaap	Operating Lease Payments OperatingLeasePayments	843000
CY2022	us-gaap	Operating Lease Payments OperatingLeasePayments	707000
CY2024Q1	ghm	Future Fixed Minimum Lease Payments FutureFixedMinimumLeasePayments	5785000
CY2024Q1	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P3Y9M29D
CY2023Q1	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P4Y5M12D
CY2024Q1	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0775
CY2023Q1	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.0798
CY2024Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P5Y11M4D
CY2023Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0325
CY2024	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	13000
CY2023	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	24000
CY2024	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	8000
CY2023	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	4000
CY2024	us-gaap	Operating Lease Cost OperatingLeaseCost	1478000
CY2023	us-gaap	Operating Lease Cost OperatingLeaseCost	1394000
CY2024	us-gaap	Short Term Lease Cost ShortTermLeaseCost	27000
CY2023	us-gaap	Short Term Lease Cost ShortTermLeaseCost	17000
CY2024	us-gaap	Lease Cost LeaseCost	1526000
CY2023	us-gaap	Lease Cost LeaseCost	1439000
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	1468000
CY2024Q1	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	26000
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	1324000
CY2024Q1	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	26000
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	1353000
CY2024Q1	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	26000
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	1390000
CY2024Q1	us-gaap	Finance Lease Liability Payments Due Year Four FinanceLeaseLiabilityPaymentsDueYearFour	21000
CY2024Q1	ghm	Lessee Operating Lease Liability Payments Due Year Five And After Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFiveAndAfterYearFive	2940000
CY2024Q1	ghm	Finance Lease Liability Payments Due Year Five And After Year Five FinanceLeaseLiabilityPaymentsDueYearFiveAndAfterYearFive	0
CY2024Q1	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	8475000
CY2024Q1	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	99000
CY2024Q1	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	789000
CY2024Q1	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	14000
CY2024Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	7686000
CY2024Q1	us-gaap	Finance Lease Liability FinanceLeaseLiability	85000
CY2024	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	149000
CY2023	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	1169000
CY2023Q1	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	756000
CY2023Q1	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	11744000
CY2023Q1	us-gaap	Long Term Debt Current LongTermDebtCurrent	2000000
CY2023Q1	us-gaap	Other Long Term Debt Noncurrent OtherLongTermDebtNoncurrent	9744000
CY2024Q1	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	8442000
CY2023Q1	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	12842000
CY2024	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	5574000
CY2023	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	561000
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-11216000
CY2024	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	1133000
CY2023	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	37000
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-31000
CY2024	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	100000
CY2023	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	204000
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	72000
CY2024	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	257000
CY2023	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	73000
CY2022	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	749000
CY2024	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1490000
CY2023	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	314000
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	790000
CY2024	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-419000
CY2023	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-89000
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-2648000
CY2024	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	88000
CY2023	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-82000
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-155000
CY2024	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-106000
CY2023	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	93000
CY2022	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-423000
CY2024	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	35000
CY2023	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	42000
CY2022	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	7000
CY2024	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-472000
CY2023	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-120000
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-3233000
CY2024	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1018000
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	194000
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-2443000
CY2024	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	1170000
CY2023	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	118000
CY2022	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-2355000
CY2024	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	156000
CY2023	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	92000
CY2022	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-96000
CY2024	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	54000
CY2023	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	26000
CY2022	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	147000
CY2024	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	-8000
CY2023	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	114000
CY2022	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	0
CY2024	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	327000
CY2023	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	240000
CY2022	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	295000
CY2024	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-35000
CY2023	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-42000
CY2022	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-7000
CY2024	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	26000
CY2023	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	27000
CY2022	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	31000
CY2024	ghm	Income Tax Reconciliation Nondeductible Fringe Benefits IncomeTaxReconciliationNondeductibleFringeBenefits	30000
CY2023	ghm	Income Tax Reconciliation Nondeductible Fringe Benefits IncomeTaxReconciliationNondeductibleFringeBenefits	44000
CY2022	ghm	Income Tax Reconciliation Nondeductible Fringe Benefits IncomeTaxReconciliationNondeductibleFringeBenefits	0
CY2024	ghm	Income Tax Reconciliation Nondeductible Expense Employee Compensation Cost IncomeTaxReconciliationNondeductibleExpenseEmployeeCompensationCost	105000
CY2023	ghm	Income Tax Reconciliation Nondeductible Expense Employee Compensation Cost IncomeTaxReconciliationNondeductibleExpenseEmployeeCompensationCost	0
CY2022	ghm	Income Tax Reconciliation Nondeductible Expense Employee Compensation Cost IncomeTaxReconciliationNondeductibleExpenseEmployeeCompensationCost	0
CY2024	ghm	Income Tax Reconciliation Foreign Withholding Tax IncomeTaxReconciliationForeignWithholdingTax	0
CY2023	ghm	Income Tax Reconciliation Foreign Withholding Tax IncomeTaxReconciliationForeignWithholdingTax	0
CY2022	ghm	Income Tax Reconciliation Foreign Withholding Tax IncomeTaxReconciliationForeignWithholdingTax	138000
CY2024	ghm	Income Tax Reconciliation Foreign Derived Intangible Income Deduction IncomeTaxReconciliationForeignDerivedIntangibleIncomeDeduction	134000
CY2023	ghm	Income Tax Reconciliation Foreign Derived Intangible Income Deduction IncomeTaxReconciliationForeignDerivedIntangibleIncomeDeduction	0
CY2022	ghm	Income Tax Reconciliation Foreign Derived Intangible Income Deduction IncomeTaxReconciliationForeignDerivedIntangibleIncomeDeduction	2000
CY2024	ghm	Income Tax Reconciliation Global Intangible Low Taxed Income IncomeTaxReconciliationGlobalIntangibleLowTaxedIncome	-20000
CY2023	ghm	Income Tax Reconciliation Global Intangible Low Taxed Income IncomeTaxReconciliationGlobalIntangibleLowTaxedIncome	55000
CY2022	ghm	Income Tax Reconciliation Global Intangible Low Taxed Income IncomeTaxReconciliationGlobalIntangibleLowTaxedIncome	0
CY2024	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	1000
CY2023	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	0
CY2022	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-4000
CY2024	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1018000
CY2023	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	194000
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-2443000
CY2024Q1	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	2931000
CY2023Q1	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	3117000
CY2024Q1	ghm	Deferred Tax Assets Tax Deferred Expense Accrued Compensation DeferredTaxAssetsTaxDeferredExpenseAccruedCompensation	237000
CY2023Q1	ghm	Deferred Tax Assets Tax Deferred Expense Accrued Compensation DeferredTaxAssetsTaxDeferredExpenseAccruedCompensation	309000
CY2024Q1	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	607000
CY2023Q1	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	224000
CY2024Q1	ghm	Deferred Tax Assets And Liabilities Prepaid Pension Cost DeferredTaxAssetsAndLiabilitiesPrepaidPensionCost	1399000
CY2023Q1	ghm	Deferred Tax Assets And Liabilities Prepaid Pension Cost DeferredTaxAssetsAndLiabilitiesPrepaidPensionCost	1355000
CY2024Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	232000
CY2023Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	245000
CY2024Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	68000
CY2023Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	79000
CY2024Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Compensated Absences DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsCompensatedAbsences	531000
CY2023Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Compensated Absences DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsCompensatedAbsences	567000
CY2024Q1	ghm	Deferred Tax Assets Liabilities Inventory DeferredTaxAssetsLiabilitiesInventory	2541000
CY2023Q1	ghm	Deferred Tax Assets Liabilities Inventory DeferredTaxAssetsLiabilitiesInventory	-10000
CY2024Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Warranty Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves	182000
CY2023Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Warranty Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves	135000
CY2024Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	600000
CY2023Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	1276000
CY2024Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	328000
CY2023Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	230000
CY2024Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	18000
CY2023Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Allowance For Doubtful Accounts DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAllowanceForDoubtfulAccounts	422000
CY2024Q1	ghm	Deferred Tax Assets Operating Lease Assets DeferredTaxAssetsOperatingLeaseAssets	1694000
CY2023Q1	ghm	Deferred Tax Assets Operating Lease Assets DeferredTaxAssetsOperatingLeaseAssets	1894000
CY2024Q1	ghm	Deferred Tax Assets Operating Lease Liabilities DeferredTaxAssetsOperatingLeaseLiabilities	1784000
CY2023Q1	ghm	Deferred Tax Assets Operating Lease Liabilities DeferredTaxAssetsOperatingLeaseLiabilities	1963000
CY2024Q1	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Policy Acquisition Cost DeferredTaxLiabilitiesDeferredExpenseDeferredPolicyAcquisitionCost	180000
CY2023Q1	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Policy Acquisition Cost DeferredTaxLiabilitiesDeferredExpenseDeferredPolicyAcquisitionCost	142000
CY2024Q1	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	187000
CY2023Q1	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	236000
CY2024Q1	ghm	Deferred Tax Assets Tax Deferred Expense State Investment Tax Credit DeferredTaxAssetsTaxDeferredExpenseStateInvestmentTaxCredit	1030000
CY2023Q1	ghm	Deferred Tax Assets Tax Deferred Expense State Investment Tax Credit DeferredTaxAssetsTaxDeferredExpenseStateInvestmentTaxCredit	1066000
CY2024Q1	ghm	Deferred Tax Assets Tax Deferred Expense Research And Development Tax Credit DeferredTaxAssetsTaxDeferredExpenseResearchAndDevelopmentTaxCredit	2771000
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CY2024Q1	us-gaap	Deferred Tax Assets Tax Credit Carryforwards Research DeferredTaxAssetsTaxCreditCarryforwardsResearch	0
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CY2024Q1	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	8213000
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CY2024Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0
CY2023Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0
CY2024	ghm	Defined Benefit Plan Additional Disclosures About Service And Average Earnings For Calculation Of Benefits DefinedBenefitPlanAdditionalDisclosuresAboutServiceAndAverageEarningsForCalculationOfBenefits	five highest consecutive calendar years of compensation in the ten-year period preceding retirement
CY2024Q1	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	22398000
CY2023Q1	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	23784000
CY2024Q1	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1
CY2023Q1	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1
CY2024	ghm	Description Of Employer Matching Contribution To Four Hundred One K Plan DescriptionOfEmployerMatchingContributionToFourHundredOneKPlan	matching contributions equal to 100% of the first 3% of an employee's salary deferral and 50% of the next 2% percent of an employee’s salary deferral
CY2024	ghm	Defined Contribution Plan Employer Matching Percent On First Three Percent Employee Salary Deferral DefinedContributionPlanEmployerMatchingPercentOnFirstThreePercentEmployeeSalaryDeferral	1
CY2024	ghm	Defined Contribution Plan Salary Deferral Percentage That Receives Equivalent Company Match DefinedContributionPlanSalaryDeferralPercentageThatReceivesEquivalentCompanyMatch	0.03
CY2024	ghm	Defined Additional Contribution Plan Employer Matching Contribution Percent DefinedAdditionalContributionPlanEmployerMatchingContributionPercent	0.50
CY2024	ghm	Defined Contribution Plan Salary Deferral Percentage That Receives Additional Company Match DefinedContributionPlanSalaryDeferralPercentageThatReceivesAdditionalCompanyMatch	0.02
CY2024Q1	ghm	Company Share Of Medical Premium Cost For Early Retiree Family Coverage Under Other Postretirement Plan CompanyShareOfMedicalPremiumCostForEarlyRetireeFamilyCoverageUnderOtherPostretirementPlan	4000
CY2024Q1	ghm	Company Share Of Medical Premium Cost For Early Retiree Single Coverage Under Other Postretirement Plan CompanyShareOfMedicalPremiumCostForEarlyRetireeSingleCoverageUnderOtherPostretirementPlan	2000
CY2024Q1	ghm	Company Share Of Medical Premium Cost For Regular Retiree Coverage Under Other Postretirement Plan CompanyShareOfMedicalPremiumCostForRegularRetireeCoverageUnderOtherPostretirementPlan	1000
CY2024Q1	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate1 DefinedBenefitPlanUltimateHealthCareCostTrendRate1	0.045
CY2024	us-gaap	Defined Benefit Plan Year Health Care Cost Trend Rate Reaches Ultimate Trend Rate DefinedBenefitPlanYearHealthCareCostTrendRateReachesUltimateTrendRate	2028
CY2024	ghm	Defined Benefit Plan Decrement In Health Care Cost Trend Rate DefinedBenefitPlanDecrementInHealthCareCostTrendRate	0.005
CY2024Q1	ghm	Accrued Postretirement Benefit Liability Current AccruedPostretirementBenefitLiabilityCurrent	49000
CY2023Q1	ghm	Accrued Postretirement Benefit Liability Current AccruedPostretirementBenefitLiabilityCurrent	49000
CY2024Q1	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	32000
CY2024	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1188000
CY2024	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	264000
CY2023	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	785000
CY2023	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	173000
CY2022	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	780000
CY2022	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	173000
CY2021Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	37000
CY2021Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	18.92
CY2022	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	0
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CY2022	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	21.19
CY2022Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	33000
CY2022Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	18.65
CY2023	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	0
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CY2023	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Expirations In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice	18.65
CY2023Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	0
CY2023Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	0
CY2023Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	0
CY2023	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	-1515000
CY2023	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	-523000
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CY2024	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	-659000
CY2024	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	450000
CY2024	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1
CY2015Q1	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	18000000
CY2024	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	0
CY2023	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	0
CY2022	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	0
CY2024	dei	Auditor Name AuditorName	Deloitte & Touche LLP
CY2024Q1	ecd	Rule10b51 Arr Adopted Flag Rule10b51ArrAdoptedFlag	false
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CY2024Q1	ecd	Non Rule10b51 Arr Trmntd Flag NonRule10b51ArrTrmntdFlag	false

Files In Submission

Name	View Source	Status
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$GHM
GRAHAM CORP Stock $ghm

2024 Q2 Form 10-K Financial Statement

#000095017024070222 Filed on June 07, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$GHM GRAHAM CORP Stock $ghm

2024 Q2 Form 10-K Financial Statement

#000095017024070222 Filed on June 07, 2024

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$GHM
GRAHAM CORP Stock $ghm