$GHM
GRAHAM CORP Stock $ghm

$ghm Overview Financials Valuation SEC Filings Company Website

2022 Form 10-K Financial Statement

#000095017022011403 Filed on June 09, 2022

Income Statement

Concept	2022	2021 Q1	2021
Revenue	$122.8M	$25.67M	$97.49M
YoY Change	25.98%	11.22%	7.6%
Cost Of Revenue	$113.7M	$20.69M	$77.02M
YoY Change	47.6%	11.0%	6.3%
Gross Profit	$9.129M	$4.981M	$20.47M
YoY Change	-55.4%	12.13%	12.79%
Gross Profit Margin	7.43%	19.4%	21.0%
Selling, General & Admin	$20.39M	$4.380M	$17.47M
YoY Change	16.68%	8.96%	3.51%
% of Gross Profit	223.31%	87.93%	85.35%
Research & Development	$3.845M		$3.367M
YoY Change	14.2%		0.42%
% of Gross Profit	42.12%		16.45%
Depreciation & Amortization	$3.077M	$485.0K	$1.945M
YoY Change	58.2%	-1.02%	-0.61%
% of Gross Profit	33.71%	9.74%	9.5%
Operating Expenses	$24.23M	$4.431M	$20.84M
YoY Change	16.28%	9.95%	3.0%
Operating Profit	-$11.34M	$550.0K	$2.998M
YoY Change	-478.35%	33.5%	359.82%
Interest Expense	$450.0K	$22.00K	$11.00K
YoY Change	3990.91%	-90.83%	-8.33%
% of Operating Profit		4.0%	0.37%
Other Income/Expense, Net	$527.0K
YoY Change
Pretax Income	-$11.22M	$572.0K	$3.267M
YoY Change	-443.31%	-12.0%	41.31%
Income Tax	-$2.443M	$184.0K	$893.0K
% Of Pretax Income		32.17%	27.33%
Net Earnings	-$8.773M	$388.0K	$2.374M
YoY Change	-469.55%	-32.64%	26.82%
Net Earnings / Revenue	-7.14%	1.51%	2.44%
Basic Earnings Per Share	-$0.83	$0.04	$0.24
Diluted Earnings Per Share	-$0.83	$0.04	$0.24
COMMON SHARES
Basic Shares Outstanding	10.54M		9.959M
Diluted Shares Outstanding	10.54M		9.959M

Balance Sheet

Concept	2022	2021 Q1	2021
SHORT-TERM ASSETS
Cash & Short-Term Investments	$14.74M	$65.03M	$65.03M
YoY Change	-77.33%	-10.92%	-10.92%
Cash & Equivalents	$14.74M	$59.53M	$59.53M
Short-Term Investments	$0.00	$5.500M	$5.500M
Other Short-Term Assets	$1.391M	$512.0K	$512.0K
YoY Change	171.68%	-43.11%	-43.11%
Inventory	$17.41M	$17.33M	$17.33M
Prepaid Expenses
Receivables	$53.22M	$17.38M	$37.37M
Other Receivables	$459.0K	$0.00	$0.00
Total Short-Term Assets	$87.22M	$120.2M	$120.2M
YoY Change	-27.47%	-5.08%	-5.09%
LONG-TERM ASSETS
Property, Plant & Equipment	$33.28M	$17.62M	$17.71M
YoY Change	87.87%	0.18%	-0.49%
Goodwill		$0.00
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$9.693M	$103.0K	$6.319M
YoY Change	53.39%	-32.68%	75.53%
Total Long-Term Assets	$96.47M	$24.03M	$24.03M
YoY Change	301.43%	12.07%	12.3%
TOTAL ASSETS
Total Short-Term Assets	$87.22M	$120.2M	$120.2M
Total Long-Term Assets	$96.47M	$24.03M	$24.03M
Total Assets	$183.7M	$144.3M	$144.3M
YoY Change	27.32%	-2.59%	-2.58%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$16.66M	$17.97M	$17.97M
YoY Change	-7.29%	26.09%	25.68%
Accrued Expenses	$15.10M	$4.628M	$10.78M
YoY Change	40.03%	38.07%	34.75%
Deferred Revenue		$14.06M
YoY Change		-47.9%
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$2.023M	$0.00	$21.00K
YoY Change	9533.33%
Total Short-Term Liabilities	$59.42M	$43.57M	$43.57M
YoY Change	36.38%	-11.5%	-11.44%
LONG-TERM LIABILITIES
Long-Term Debt	$16.39M	$34.00K	$34.00K
YoY Change	48102.94%	-66.0%	-66.0%
Other Long-Term Liabilities	$11.32M	$0.00	$2.109M
YoY Change	436.84%	-100.0%	50.64%
Total Long-Term Liabilities	$27.71M	$0.00	$2.143M
YoY Change	1193.09%	-100.0%	42.87%
TOTAL LIABILITIES
Total Short-Term Liabilities	$59.42M	$43.57M	$43.57M
Total Long-Term Liabilities	$27.71M	$0.00	$2.143M
Total Liabilities	$87.20M	$46.35M	$46.35M
YoY Change	88.12%	-9.82%	-9.82%
SHAREHOLDERS EQUITY
Retained Earnings		$89.37M
YoY Change		-2.21%
Common Stock		$28.35M
YoY Change		3.34%
Preferred Stock
YoY Change
Treasury Stock (at cost)		$12.39M
YoY Change		-1.16%
Treasury Stock Shares		$790.0K
Shareholders Equity	$96.49M	$97.93M	$97.93M
YoY Change
Total Liabilities & Shareholders Equity	$183.7M	$144.3M	$144.3M
YoY Change	27.32%	-2.59%	-2.58%

Cashflow Statement

Concept	2022	2021 Q1	2021
OPERATING ACTIVITIES
Net Income	-$8.773M	$388.0K	$2.374M
YoY Change	-469.55%	-32.64%	26.82%
Depreciation, Depletion And Amortization	$3.077M	$485.0K	$1.945M
YoY Change	58.2%	-1.02%	-0.61%
Cash From Operating Activities	-$2.219M	-$2.392M	-$1.722M
YoY Change	28.86%	-144.63%	-238.98%
INVESTING ACTIVITIES
Capital Expenditures	$2.324M	-$698.0K	$2.158M
YoY Change	7.69%	-32.23%	-10.72%
Acquisitions	$60.28M		$0.00
YoY Change
Other Investing Activities	-$54.78M	$5.000K	$34.56M
YoY Change	-258.54%	-99.97%	48.3%
Cash From Investing Activities	-$57.11M	-$693.0K	$32.40M
YoY Change	-276.27%	-103.87%	55.15%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	$41.00K		$23.00K
YoY Change	78.26%		-90.0%
Debt Paid & Issued, Net	$39.75M		$4.599M
YoY Change	764.32%
Cash From Financing Activities	14.42M	-1.104M	-4.454M
YoY Change	-423.73%	0.36%	-1.18%
NET CHANGE
Cash From Operating Activities	-2.219M	-2.392M	-1.722M
Cash From Investing Activities	-57.11M	-693.0K	32.40M
Cash From Financing Activities	14.42M	-1.104M	-4.454M
Net Change In Cash	-44.79M	-4.189M	26.58M
YoY Change	-268.53%	-118.88%	52.9%
FREE CASH FLOW
Cash From Operating Activities	-$2.219M	-$2.392M	-$1.722M
Capital Expenditures	$2.324M	-$698.0K	$2.158M
Free Cash Flow	-$4.543M	-$1.694M	-$3.880M
YoY Change	17.09%	-126.51%	229.37%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
CY2021Q1	us-gaap	Preferred Stock Value PreferredStockValue
CY2022Q1	us-gaap	Preferred Stock Value PreferredStockValue
CY2021Q1	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2022Q1	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2022	dei	Amendment Flag AmendmentFlag	false
CY2022	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2022Q1	us-gaap	Revenue Remaining Performance Obligation Expected Timing Of Satisfaction Period1 RevenueRemainingPerformanceObligationExpectedTimingOfSatisfactionPeriod1	P1Y
CY2022	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--03-31
CY2022	dei	Entity Central Index Key EntityCentralIndexKey	0000716314
CY2022	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2022
CY2022	dei	Document Type DocumentType	10-K
CY2022	dei	Document Annual Report DocumentAnnualReport	true
CY2022	dei	Document Period End Date DocumentPeriodEndDate	2022-03-31
CY2022	dei	Document Transition Report DocumentTransitionReport	false
CY2022	dei	Entity File Number EntityFileNumber	1-08462
CY2022	dei	Entity Registrant Name EntityRegistrantName	GRAHAM CORPORATION
CY2022	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	DE
CY2022	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	16-1194720
CY2022	dei	Entity Address Address Line1 EntityAddressAddressLine1	20 Florence Avenue
CY2022	dei	Entity Address City Or Town EntityAddressCityOrTown	Batavia
CY2022	dei	Entity Address State Or Province EntityAddressStateOrProvince	NY
CY2022	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	14020
CY2022	dei	City Area Code CityAreaCode	585
CY2022	dei	Local Phone Number LocalPhoneNumber	343-2216
CY2022	dei	Security12b Title Security12bTitle	Common Stock, Par Value $0.10 Per Share
CY2022	dei	Trading Symbol TradingSymbol	GHM
CY2022	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2022	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2022	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2022	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2022	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2022	dei	Entity Filer Category EntityFilerCategory	Non-accelerated Filer
CY2022	dei	Entity Small Business EntitySmallBusiness	true
CY2022	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2022	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	false
CY2022	dei	Entity Shell Company EntityShellCompany	false
CY2021Q3	dei	Entity Public Float EntityPublicFloat	124200000
CY2022Q2	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	10602605
CY2022	dei	Auditor Firm AuditorFirmId	34
CY2022	dei	Auditor Name AuditorName	DELOITTE & TOUCHE LLP
CY2022	dei	Auditor Location AuditorLocation	Rochester, New York
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	122814000
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	97489000
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	90604000
CY2022	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	113685000
CY2021	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	77020000
CY2020	us-gaap	Cost Of Goods And Services Sold CostOfGoodsAndServicesSold	72456000
CY2022	us-gaap	Gross Profit GrossProfit	9129000
CY2021	us-gaap	Gross Profit GrossProfit	20469000
CY2020	us-gaap	Gross Profit GrossProfit	18148000
CY2022	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	20386000
CY2021	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	17471000
CY2020	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	16879000
CY2022	ghm	Selling General And Administrative Amortization Expense SellingGeneralAndAdministrativeAmortizationExpense	913000
CY2021	ghm	Selling General And Administrative Amortization Expense SellingGeneralAndAdministrativeAmortizationExpense	0
CY2020	ghm	Selling General And Administrative Amortization Expense SellingGeneralAndAdministrativeAmortizationExpense	0
CY2022	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	827000
CY2020	us-gaap	Other Operating Income Expense Net OtherOperatingIncomeExpenseNet	-617000
CY2022	us-gaap	Operating Income Loss OperatingIncomeLoss	-11343000
CY2021	us-gaap	Operating Income Loss OperatingIncomeLoss	2998000
CY2020	us-gaap	Operating Income Loss OperatingIncomeLoss	652000
CY2022	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	-527000
CY2021	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	-113000
CY2020	us-gaap	Net Periodic Defined Benefits Expense Reversal Of Expense Excluding Service Cost Component NetPeriodicDefinedBenefitsExpenseReversalOfExpenseExcludingServiceCostComponent	-348000
CY2022	us-gaap	Investment Income Interest InvestmentIncomeInterest	50000
CY2021	us-gaap	Investment Income Interest InvestmentIncomeInterest	167000
CY2020	us-gaap	Investment Income Interest InvestmentIncomeInterest	1324000
CY2022	us-gaap	Interest Expense InterestExpense	450000
CY2021	us-gaap	Interest Expense InterestExpense	11000
CY2020	us-gaap	Interest Expense InterestExpense	12000
CY2022	ghm	Other Expenses And Income OtherExpensesAndIncome	-127000
CY2021	ghm	Other Expenses And Income OtherExpensesAndIncome	-269000
CY2020	ghm	Other Expenses And Income OtherExpensesAndIncome	-1660000
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-11216000
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	3267000
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2312000
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-2443000
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	893000
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	440000
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-8773000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	2374000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	1872000
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.83
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.24
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.19
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.83
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.24
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.19
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	10541000
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	9959000
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	9876000
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	10541000
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	9959000
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	9879000
CY2022	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.33
CY2021	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.44
CY2020	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.43
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-8773000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	2374000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	1872000
CY2022	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	198000
CY2021	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	385000
CY2020	us-gaap	Other Comprehensive Income Loss Foreign Currency Transaction And Translation Adjustment Net Of Tax OtherComprehensiveIncomeLossForeignCurrencyTransactionAndTranslationAdjustmentNetOfTax	-198000
CY2022	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	209000
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	509000
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansTax	-153000
CY2022	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-728000
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-1774000
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	525000
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	926000
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	2159000
CY2020	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-723000
CY2022	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	-7847000
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	4533000
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1149000
CY2022Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	14741000
CY2021Q1	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	59532000
CY2022Q1	us-gaap	Held To Maturity Securities Current HeldToMaturitySecuritiesCurrent	0
CY2021Q1	us-gaap	Held To Maturity Securities Current HeldToMaturitySecuritiesCurrent	5500000
CY2022Q1	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	87000
CY2021Q1	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	29000
CY2022Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	27645000
CY2021Q1	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	17378000
CY2022Q1	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	25570000
CY2021Q1	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	19994000
CY2022Q1	us-gaap	Inventory Net InventoryNet	17414000
CY2021Q1	us-gaap	Inventory Net InventoryNet	17332000
CY2022Q1	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	1391000
CY2021Q1	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	512000
CY2022Q1	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	459000
CY2021Q1	us-gaap	Income Taxes Receivable IncomeTaxesReceivable	0
CY2022Q1	us-gaap	Assets Current AssetsCurrent	87220000
CY2021Q1	us-gaap	Assets Current AssetsCurrent	120248000
CY2022Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	24884000
CY2021Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	17618000
CY2022Q1	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	7058000
CY2021Q1	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	6216000
CY2022Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	8394000
CY2021Q1	us-gaap	Operating Lease Right Of Use Asset OperatingLeaseRightOfUseAsset	95000
CY2022Q1	us-gaap	Goodwill Goodwill	23523000
CY2021Q1	us-gaap	Goodwill Goodwill	0
CY2022Q1	us-gaap	Other Intangible Assets Net OtherIntangibleAssetsNet	8990000
CY2022Q1	us-gaap	Deferred Income Tax Assets Net DeferredIncomeTaxAssetsNet	2441000
CY2022Q1	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	194000
CY2021Q1	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	103000
CY2022Q1	us-gaap	Assets Assets	183691000
CY2021Q1	us-gaap	Assets Assets	144280000
CY2022Q1	us-gaap	Other Long Term Debt Current OtherLongTermDebtCurrent	2000000
CY2021Q1	us-gaap	Other Long Term Debt Current OtherLongTermDebtCurrent	21000
CY2022Q1	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	23000
CY2021Q1	us-gaap	Finance Lease Liability Current FinanceLeaseLiabilityCurrent	0
CY2022Q1	us-gaap	Accounts Payable Current AccountsPayableCurrent	16662000
CY2021Q1	us-gaap	Accounts Payable Current AccountsPayableCurrent	17972000
CY2022Q1	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	7991000
CY2021Q1	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	6106000
CY2022Q1	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	6047000
CY2021Q1	us-gaap	Accrued Liabilities Current AccruedLiabilitiesCurrent	4628000
CY2022Q1	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	25644000
CY2021Q1	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	14059000
CY2022Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	1057000
CY2021Q1	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	46000
CY2022Q1	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	0
CY2021Q1	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	741000
CY2022Q1	us-gaap	Liabilities Current LiabilitiesCurrent	59424000
CY2021Q1	us-gaap	Liabilities Current LiabilitiesCurrent	43573000
CY2022Q1	us-gaap	Other Long Term Debt Noncurrent OtherLongTermDebtNoncurrent	16378000
CY2021Q1	us-gaap	Other Long Term Debt Noncurrent OtherLongTermDebtNoncurrent	0
CY2022Q1	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	11000
CY2021Q1	us-gaap	Finance Lease Liability Noncurrent FinanceLeaseLiabilityNoncurrent	34000
CY2022Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	7460000
CY2021Q1	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	37000
CY2022Q1	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	62000
CY2021Q1	us-gaap	Deferred Income Tax Liabilities Net DeferredIncomeTaxLiabilitiesNet	635000
CY2022Q1	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	1666000
CY2021Q1	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	2072000
CY2022Q1	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	2196000
CY2021Q1	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	0
CY2022Q1	us-gaap	Liabilities Liabilities	87197000
CY2021Q1	us-gaap	Liabilities Liabilities	46351000
CY2022Q1	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1.00
CY2021Q1	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1.00
CY2022Q1	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	500000
CY2021Q1	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	500000
CY2022Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.10
CY2021Q1	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.10
CY2022Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	25500000
CY2021Q1	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	25500000
CY2022Q1	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	10801000
CY2021Q1	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	10748000
CY2022Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	10636000
CY2021Q1	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	9959000
CY2022Q1	us-gaap	Common Stock Value CommonStockValue	1080000
CY2021Q1	us-gaap	Common Stock Value CommonStockValue	1075000
CY2022Q1	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	27770000
CY2021Q1	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	27272000
CY2022Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	77076000
CY2021Q1	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	89372000
CY2022Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-6471000
CY2021Q1	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-7397000
CY2022Q1	us-gaap	Treasury Stock Shares TreasuryStockShares	164000
CY2021Q1	us-gaap	Treasury Stock Shares TreasuryStockShares	790000
CY2022Q1	us-gaap	Treasury Stock Value TreasuryStockValue	2961000
CY2021Q1	us-gaap	Treasury Stock Value TreasuryStockValue	12393000
CY2022Q1	us-gaap	Stockholders Equity StockholdersEquity	96494000
CY2021Q1	us-gaap	Stockholders Equity StockholdersEquity	97929000
CY2022Q1	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	183691000
CY2021Q1	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	144280000
CY2022	us-gaap	Profit Loss ProfitLoss	-8773000
CY2021	us-gaap	Profit Loss ProfitLoss	2374000
CY2020	us-gaap	Profit Loss ProfitLoss	1872000
CY2022	us-gaap	Depreciation Depreciation	3077000
CY2021	us-gaap	Depreciation Depreciation	1945000
CY2020	us-gaap	Depreciation Depreciation	1957000
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2522000
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	0
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	11000
CY2022	ghm	Amortization Of Unrecognized Prior Service Cost And Actuarial Losses AmortizationOfUnrecognizedPriorServiceCostAndActuarialLosses	996000
CY2021	ghm	Amortization Of Unrecognized Prior Service Cost And Actuarial Losses AmortizationOfUnrecognizedPriorServiceCostAndActuarialLosses	1066000
CY2020	ghm	Amortization Of Unrecognized Prior Service Cost And Actuarial Losses AmortizationOfUnrecognizedPriorServiceCostAndActuarialLosses	997000
CY2022	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0
CY2021	us-gaap	Asset Impairment Charges AssetImpairmentCharges	184000
CY2020	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0
CY2022	us-gaap	Share Based Compensation ShareBasedCompensation	809000
CY2021	us-gaap	Share Based Compensation ShareBasedCompensation	864000
CY2020	us-gaap	Share Based Compensation ShareBasedCompensation	975000
CY2022	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-23000
CY2021	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	-2000
CY2020	us-gaap	Gain Loss On Disposition Of Assets GainLossOnDispositionOfAssets	1000
CY2022	ghm	Change In Fair Value Of Contingent Consideration ChangeInFairValueOfContingentConsideration	-1900000
CY2021	ghm	Change In Fair Value Of Contingent Consideration ChangeInFairValueOfContingentConsideration	0
CY2020	ghm	Change In Fair Value Of Contingent Consideration ChangeInFairValueOfContingentConsideration	0
CY2022	us-gaap	Gain Or Loss On Sale Of Stock In Subsidiary GainOrLossOnSaleOfStockInSubsidiary	0
CY2021	us-gaap	Gain Or Loss On Sale Of Stock In Subsidiary GainOrLossOnSaleOfStockInSubsidiary	0
CY2020	us-gaap	Gain Or Loss On Sale Of Stock In Subsidiary GainOrLossOnSaleOfStockInSubsidiary	-181000
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-3233000
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-561000
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-287000
CY2022	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	2055000
CY2021	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	1791000
CY2020	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2417000
CY2022	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	0
CY2021	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	7000
CY2020	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	12000
CY2020	us-gaap	Increase Decrease In Accounts Receivable IncreaseDecreaseInAccountsReceivable	-2044000
CY2022	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	-1550000
CY2021	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	5298000
CY2020	us-gaap	Increase Decrease In Contract With Customer Asset IncreaseDecreaseInContractWithCustomerAsset	7070000
CY2022	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-3483000
CY2021	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-5185000
CY2020	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-2279000
CY2022	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	1208000
CY2021	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	-1215000
CY2020	us-gaap	Increase Decrease In Income Taxes Receivable IncreaseDecreaseInIncomeTaxesReceivable	-588000
CY2022	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	340000
CY2021	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-416000
CY2020	us-gaap	Increase Decrease In Prepaid Deferred Expense And Other Assets IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets	-358000
CY2022	ghm	Increase Decrease In Operating Lease Right Of Use Asset IncreaseDecreaseInOperatingLeaseRightOfUseAsset	-1059000
CY2021	ghm	Increase Decrease In Operating Lease Right Of Use Asset IncreaseDecreaseInOperatingLeaseRightOfUseAsset	-155000
CY2020	ghm	Increase Decrease In Operating Lease Right Of Use Asset IncreaseDecreaseInOperatingLeaseRightOfUseAsset	-214000
CY2022	ghm	Increase Decrease In Defined Benefit Plan Assets For Plan Benefits Noncurrent IncreaseDecreaseInDefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	1207000
CY2021	ghm	Increase Decrease In Defined Benefit Plan Assets For Plan Benefits Noncurrent IncreaseDecreaseInDefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	841000
CY2020	ghm	Increase Decrease In Defined Benefit Plan Assets For Plan Benefits Noncurrent IncreaseDecreaseInDefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	871000
CY2022	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-3238000
CY2021	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	3556000
CY2020	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	1826000
CY2022	ghm	Increase Decrease In Accrued Compensation Accrued Expenses And Other Current And Non Current Liabilities IncreaseDecreaseInAccruedCompensationAccruedExpensesAndOtherCurrentAndNonCurrentLiabilities	1164000
CY2021	ghm	Increase Decrease In Accrued Compensation Accrued Expenses And Other Current And Non Current Liabilities IncreaseDecreaseInAccruedCompensationAccruedExpensesAndOtherCurrentAndNonCurrentLiabilities	3101000
CY2020	ghm	Increase Decrease In Accrued Compensation Accrued Expenses And Other Current And Non Current Liabilities IncreaseDecreaseInAccruedCompensationAccruedExpensesAndOtherCurrentAndNonCurrentLiabilities	-52000
CY2022	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	5523000
CY2021	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-13206000
CY2020	us-gaap	Increase Decrease In Contract With Customer Liability IncreaseDecreaseInContractWithCustomerLiability	-3683000
CY2022	ghm	Increase Decrease In Operating Lease Liabilities IncreaseDecreaseInOperatingLeaseLiabilities	-962000
CY2021	ghm	Increase Decrease In Operating Lease Liabilities IncreaseDecreaseInOperatingLeaseLiabilities	-158000
CY2020	ghm	Increase Decrease In Operating Lease Liabilities IncreaseDecreaseInOperatingLeaseLiabilities	-140000
CY2022	ghm	Increase Decrease In Long Term Portion Of Accrued Compensation Accrued Pension Liability And Accrued Postretirement Benefits IncreaseDecreaseInLongTermPortionOfAccruedCompensationAccruedPensionLiabilityAndAccruedPostretirementBenefits	491000
CY2021	ghm	Increase Decrease In Long Term Portion Of Accrued Compensation Accrued Pension Liability And Accrued Postretirement Benefits IncreaseDecreaseInLongTermPortionOfAccruedCompensationAccruedPensionLiabilityAndAccruedPostretirementBenefits	70000
CY2020	ghm	Increase Decrease In Long Term Portion Of Accrued Compensation Accrued Pension Liability And Accrued Postretirement Benefits IncreaseDecreaseInLongTermPortionOfAccruedCompensationAccruedPensionLiabilityAndAccruedPostretirementBenefits	41000
CY2022	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-2219000
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-1722000
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	1239000
CY2022	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2324000
CY2021	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2158000
CY2022	us-gaap	Proceeds From Divestiture Of Interest In Consolidated Subsidiaries ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries	0
CY2021	us-gaap	Proceeds From Divestiture Of Interest In Consolidated Subsidiaries ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries	0
CY2020	us-gaap	Proceeds From Divestiture Of Interest In Consolidated Subsidiaries ProceedsFromDivestitureOfInterestInConsolidatedSubsidiaries	602000
CY2022	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	0
CY2021	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	42603000
CY2020	us-gaap	Payments To Acquire Held To Maturity Securities PaymentsToAcquireHeldToMaturitySecurities	181462000
CY2022	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	5500000
CY2021	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	77151000
CY2020	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	204146000
CY2022	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	60282000
CY2021	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0
CY2020	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	0
CY2022	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-57106000
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	32397000
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	20881000
CY2022	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	39750000
CY2021	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	4599000
CY2020	us-gaap	Repayments Of Long Term Debt RepaymentsOfLongTermDebt	0
CY2022	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	58250000
CY2021	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	4599000
CY2020	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	0
CY2022	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	21000
CY2021	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	40000
CY2020	us-gaap	Finance Lease Principal Payments FinanceLeasePrincipalPayments	51000
CY2022	ghm	Repayments On Lease Financing Obligations RepaymentsOnLeaseFinancingObligations	225000
CY2021	ghm	Repayments On Lease Financing Obligations RepaymentsOnLeaseFinancingObligations	0
CY2020	ghm	Repayments On Lease Financing Obligations RepaymentsOnLeaseFinancingObligations	0
CY2022	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	271000
CY2021	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0
CY2020	us-gaap	Payments Of Debt Issuance Costs PaymentsOfDebtIssuanceCosts	0
CY2022	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	24000
CY2022	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	3523000
CY2021	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	4391000
CY2020	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	4250000
CY2022	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	41000
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	23000
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	230000
CY2022	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	14419000
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-4454000
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-4507000
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
CY2021	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	356000
CY2020	us-gaap	Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	-231000
CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	-44791000
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	26577000
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect	17382000
CY2022	ghm	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Within Current Assets Held For Sale CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseWithinCurrentAssetsHeldForSale	0
CY2021	ghm	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Within Current Assets Held For Sale CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseWithinCurrentAssetsHeldForSale	0
CY2020	ghm	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Within Current Assets Held For Sale CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseWithinCurrentAssetsHeldForSale	-552000
CY2022	ghm	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Cash Within Current Assets Held For Sale Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingCashWithinCurrentAssetsHeldForSaleIncludingExchangeRateEffect	-44791000
CY2021	ghm	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Cash Within Current Assets Held For Sale Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingCashWithinCurrentAssetsHeldForSaleIncludingExchangeRateEffect	26577000
CY2020	ghm	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Cash Within Current Assets Held For Sale Including Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingCashWithinCurrentAssetsHeldForSaleIncludingExchangeRateEffect	17934000
CY2021Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	59532000
CY2020Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	32955000
CY2019Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	15021000
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
CY2020Q1	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Including Disposal Group And Discontinued Operations CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations	32955000
CY2019Q1	us-gaap	Stockholders Equity StockholdersEquity	98966000
CY2020	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	1149000
CY2020	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	24000
CY2020	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	4250000
CY2020	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	975000
CY2020	us-gaap	Treasury Stock Value Acquired Par Value Method TreasuryStockValueAcquiredParValueMethod	230000
CY2020	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	170000
CY2020Q1	us-gaap	Stockholders Equity StockholdersEquity	96724000
CY2021	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	4533000
CY2021	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	4391000
CY2021	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	864000
CY2021	us-gaap	Treasury Stock Value Acquired Par Value Method TreasuryStockValueAcquiredParValueMethod	23000
CY2021	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	222000
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
CY2021	ghm	Test Of Impairment More Likelihood Percentage TestOfImpairmentMoreLikelihoodPercentage	0.50
CY2022	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	3845000
CY2021	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	3367000
CY2020	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	3353000
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-8773000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	2374000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	1872000
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	10541000
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	9959000
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	9876000
CY2022	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	-0.83
CY2021	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.24
CY2020	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.19
CY2022	us-gaap	Net Income Loss NetIncomeLoss	-8773000
CY2021	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	9959000
CY2020	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	9876000
CY2020	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	3000
CY2022	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	10541000
CY2021	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	9959000
CY2020	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	9879000
CY2022	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	-0.83
CY2021	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.24
CY2020	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.19
CY2022	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	33000
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	37000
CY2021	us-gaap	Net Income Loss NetIncomeLoss	2374000
CY2020	us-gaap	Net Income Loss NetIncomeLoss	1872000
CY2022	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	10541000
CY2022	us-gaap	Interest Paid Net InterestPaidNet	417000
CY2021	us-gaap	Interest Paid Net InterestPaidNet	11000
CY2020	us-gaap	Interest Paid Net InterestPaidNet	12000
CY2022	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	2012000
CY2021	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	200000
CY2020	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	139000
CY2022	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-728000
CY2021	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	-1774000
CY2020	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Adjustment Net Of Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansAdjustmentNetOfTax	525000
CY2022	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	177000
CY2021	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	173000
CY2020	us-gaap	Capital Expenditures Incurred But Not Yet Paid CapitalExpendituresIncurredButNotYetPaid	162000
CY2022	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	0
CY2021	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	0
CY2020	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	0
CY2022	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	60282000
CY2022	us-gaap	Stock Issued During Period Shares Treasury Stock Reissued StockIssuedDuringPeriodSharesTreasuryStockReissued	610000
CY2022	us-gaap	Use Of Estimates UseOfEstimates	<p style="text-indent:0.0%;font-size:10.0pt;margin-top:18.0pt;line-height:1.15;font-family:Times New Roman;margin-bottom:0.0pt;text-align:justify;"><span style="background-color:rgba(0,0,0,0);color:rgba(0,0,0,1);font-weight:bold;font-size:10.0pt;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:10.0pt;margin-top:6.0pt;line-height:1.15;font-family:Times New Roman;margin-bottom:0.0pt;text-align:justify;"><span style="background-color:rgba(0,0,0,0);color:rgba(0,0,0,1);font-weight:normal;font-size:10.0pt;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>
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2522000
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	122814000
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	97489000
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	90604000
CY2022	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	122814000
CY2021	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	97489000
CY2020	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	90604000
CY2022	ghm	Percentage Of Revenue From Contracts With Customers Excluding Assessed Tax Performance Obligation Satisfied At Point In Time PercentageOfRevenueFromContractsWithCustomersExcludingAssessedTaxPerformanceObligationSatisfiedAtPointInTime	0.25
CY2021	ghm	Percentage Of Revenue From Contracts With Customers Excluding Assessed Tax Performance Obligation Satisfied At Point In Time PercentageOfRevenueFromContractsWithCustomersExcludingAssessedTaxPerformanceObligationSatisfiedAtPointInTime	0.40
CY2020	ghm	Percentage Of Revenue From Contracts With Customers Excluding Assessed Tax Performance Obligation Satisfied At Point In Time PercentageOfRevenueFromContractsWithCustomersExcludingAssessedTaxPerformanceObligationSatisfiedAtPointInTime	0.30
CY2022	ghm	Percentage Of Revenue From Contracts With Customers Excluding Assessed Tax Performance Obligation Satisfied Over Time PercentageOfRevenueFromContractsWithCustomersExcludingAssessedTaxPerformanceObligationSatisfiedOverTime	0.75
CY2021	ghm	Percentage Of Revenue From Contracts With Customers Excluding Assessed Tax Performance Obligation Satisfied Over Time PercentageOfRevenueFromContractsWithCustomersExcludingAssessedTaxPerformanceObligationSatisfiedOverTime	0.60
CY2020	ghm	Percentage Of Revenue From Contracts With Customers Excluding Assessed Tax Performance Obligation Satisfied Over Time PercentageOfRevenueFromContractsWithCustomersExcludingAssessedTaxPerformanceObligationSatisfiedOverTime	0.70
CY2022Q1	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	25570000
CY2021Q1	us-gaap	Contract With Customer Asset Net Current ContractWithCustomerAssetNetCurrent	19994000
CY2022	ghm	Change In Contract With Customer Asset ChangeInContractWithCustomerAsset	5576000
CY2022Q1	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	25644000
CY2021Q1	us-gaap	Contract With Customer Liability Current ContractWithCustomerLiabilityCurrent	14059000
CY2022	ghm	Change In Contract With Customer Liability ChangeInContractWithCustomerLiability	11585000
CY2022Q1	ghm	Contract With Customer Net Asset Liability Current ContractWithCustomerNetAssetLiabilityCurrent	-74000
CY2021Q1	ghm	Contract With Customer Net Asset Liability Current ContractWithCustomerNetAssetLiabilityCurrent	5935000
CY2022	ghm	Change In Contract With Customer Asset Liability Net ChangeInContractWithCustomerAssetLiabilityNet	6009000
CY2021Q2	us-gaap	Contract With Customer Liability Increase Decrease For Contract Acquired In Business Combination ContractWithCustomerLiabilityIncreaseDecreaseForContractAcquiredInBusinessCombination	6048000
CY2022	ghm	Contract With Customer Liability Revenue Recognized Including Acquisition ContractWithCustomerLiabilityRevenueRecognizedIncludingAcquisition	18263000
CY2022	ghm	Change In Contract With Customer Asset ChangeInContractWithCustomerAsset	5576000
CY2022	us-gaap	Contract With Customer Asset Cumulative Catch Up Adjustment To Revenue Change In Measure Of Progress ContractWithCustomerAssetCumulativeCatchUpAdjustmentToRevenueChangeInMeasureOfProgress	58660000
CY2022	us-gaap	Contract With Customer Asset Increase Decrease For Contract Acquired In Business Combination ContractWithCustomerAssetIncreaseDecreaseForContractAcquiredInBusinessCombination	7068000
CY2022	us-gaap	Contract With Customer Asset Reclassified To Receivable ContractWithCustomerAssetReclassifiedToReceivable	60152000
CY2022	ghm	Change In Contract With Customer Liability ChangeInContractWithCustomerLiability	11585000
CY2022	ghm	Contract With Customer Liability Consideration Received ContractWithCustomerLiabilityConsiderationReceived	23800000
CY2022Q1	ghm	Contract With Customer Receivables Billed But Not Paid Under Retainage ContractWithCustomerReceivablesBilledButNotPaidUnderRetainage	3182000
CY2021Q1	ghm	Contract With Customer Receivables Billed But Not Paid Under Retainage ContractWithCustomerReceivablesBilledButNotPaidUnderRetainage	3747000
CY2022	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	166000
CY2021	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	600000
CY2020	us-gaap	Capitalized Contract Cost Amortization CapitalizedContractCostAmortization	169000
CY2022Q1	us-gaap	Revenue Remaining Performance Obligation RevenueRemainingPerformanceObligation	256536000
CY2022Q1	us-gaap	Inventory Raw Materials InventoryRawMaterials	4145000
CY2021Q1	us-gaap	Inventory Raw Materials InventoryRawMaterials	3490000
CY2022Q1	us-gaap	Inventory Work In Process InventoryWorkInProcess	11631000
CY2021Q1	us-gaap	Inventory Work In Process InventoryWorkInProcess	12196000
CY2022Q1	us-gaap	Inventory Finished Goods InventoryFinishedGoods	1638000
CY2021Q1	us-gaap	Inventory Finished Goods InventoryFinishedGoods	1646000
CY2022Q1	us-gaap	Inventory Net InventoryNet	17414000
CY2021Q1	us-gaap	Inventory Net InventoryNet	17332000
CY2022Q1	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	63403000
CY2021Q1	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	53087000
CY2022Q1	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	38519000
CY2021Q1	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	35469000
CY2022Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	24884000
CY2021Q1	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	17618000
CY2022	us-gaap	Depreciation Depreciation	3077000
CY2021	us-gaap	Depreciation Depreciation	1945000
CY2020	us-gaap	Depreciation Depreciation	1957000
CY2021Q1	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	626000
CY2020Q1	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	359000
CY2022	ghm	Product Warranty Accrual Acquired ProductWarrantyAccrualAcquired	169000
CY2022	us-gaap	Product Warranty Expense ProductWarrantyExpense	386000
CY2021	us-gaap	Product Warranty Expense ProductWarrantyExpense	344000
CY2022Q1	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.1067
CY2021Q1	us-gaap	Finance Lease Weighted Average Discount Rate Percent FinanceLeaseWeightedAverageDiscountRatePercent	0.1071
CY2022	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	740000
CY2021	us-gaap	Standard Product Warranty Accrual Payments StandardProductWarrantyAccrualPayments	77000
CY2022Q1	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	441000
CY2021Q1	us-gaap	Product Warranty Accrual ProductWarrantyAccrual	626000
CY2022	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.
CY2022Q1	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P1Y5M1D
CY2021Q1	us-gaap	Finance Lease Weighted Average Remaining Lease Term1 FinanceLeaseWeightedAverageRemainingLeaseTerm1	P2Y4M28D
CY2022Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P7Y6M14D
CY2021Q1	us-gaap	Operating Lease Weighted Average Remaining Lease Term1 OperatingLeaseWeightedAverageRemainingLeaseTerm1	P1Y10M2D
CY2022Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0327
CY2021Q1	us-gaap	Operating Lease Weighted Average Discount Rate Percent OperatingLeaseWeightedAverageDiscountRatePercent	0.0549
CY2022	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	20000
CY2021	us-gaap	Finance Lease Right Of Use Asset Amortization FinanceLeaseRightOfUseAssetAmortization	22000
CY2022	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	5000
CY2021	us-gaap	Finance Lease Interest Expense FinanceLeaseInterestExpense	8000
CY2022	us-gaap	Operating Lease Cost OperatingLeaseCost	1309000
CY2021	us-gaap	Operating Lease Cost OperatingLeaseCost	165000
CY2022	us-gaap	Short Term Lease Cost ShortTermLeaseCost	33000
CY2021	us-gaap	Short Term Lease Cost ShortTermLeaseCost	11000
CY2022	us-gaap	Lease Cost LeaseCost	1367000
CY2021	us-gaap	Lease Cost LeaseCost	206000
CY2022Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Two LesseeOperatingLeaseLiabilityPaymentsDueYearTwo	1170000
CY2022Q1	us-gaap	Finance Lease Liability Payments Due Year Two FinanceLeaseLiabilityPaymentsDueYearTwo	11000
CY2022Q1	us-gaap	Lessee Operating Lease Liability Payments Due Next Twelve Months LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths	1315000
CY2022Q1	us-gaap	Finance Lease Liability Payments Due Next Twelve Months FinanceLeaseLiabilityPaymentsDueNextTwelveMonths	26000
CY2022Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Three LesseeOperatingLeaseLiabilityPaymentsDueYearThree	1161000
CY2022Q1	us-gaap	Finance Lease Liability Payments Due Year Three FinanceLeaseLiabilityPaymentsDueYearThree	0
CY2022Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Four LesseeOperatingLeaseLiabilityPaymentsDueYearFour	1169000
CY2022Q1	us-gaap	Lessee Operating Lease Liability Payments Due Year Five LesseeOperatingLeaseLiabilityPaymentsDueYearFive	4856000
CY2022Q1	us-gaap	Lessee Operating Lease Liability Payments Due LesseeOperatingLeaseLiabilityPaymentsDue	9671000
CY2022Q1	us-gaap	Finance Lease Liability Payments Due FinanceLeaseLiabilityPaymentsDue	37000
CY2022Q1	us-gaap	Lessee Operating Lease Liability Undiscounted Excess Amount LesseeOperatingLeaseLiabilityUndiscountedExcessAmount	1154000
CY2022Q1	us-gaap	Finance Lease Liability Undiscounted Excess Amount FinanceLeaseLiabilityUndiscountedExcessAmount	3000
CY2022Q1	us-gaap	Operating Lease Liability OperatingLeaseLiability	8517000
CY2022Q1	us-gaap	Finance Lease Liability FinanceLeaseLiability	34000
CY2022	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	328000
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0
CY2022Q1	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	122000
CY2021Q1	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	0
CY2022Q1	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	18378000
CY2021Q1	us-gaap	Debt Instrument Carrying Amount DebtInstrumentCarryingAmount	0
CY2022Q1	us-gaap	Long Term Debt Current LongTermDebtCurrent	2000000
CY2021Q1	us-gaap	Long Term Debt Current LongTermDebtCurrent	0
CY2022Q1	us-gaap	Other Long Term Debt Noncurrent OtherLongTermDebtNoncurrent	16378000
CY2021Q1	us-gaap	Other Long Term Debt Noncurrent OtherLongTermDebtNoncurrent	0
CY2022	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	147000
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	158000
CY2022Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	2000000
CY2022Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	2000000
CY2022Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	2000000
CY2022Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	12500000
CY2022Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	0
CY2022Q1	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	0
CY2022Q1	us-gaap	Long Term Debt LongTermDebt	18500000
CY2021Q2	us-gaap	Line Of Credit Facility Unused Capacity Commitment Fee Percentage LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage	0.0025
CY2021Q2	ghm	Maximum Leverage Ratio MaximumLeverageRatio	3.0
CY2021Q2	ghm	Maximum Leverage Ratio Upon Acquisition MaximumLeverageRatioUponAcquisition	3.25
CY2021Q2	ghm	Minimum Fixed Charge Coverage Ratio MinimumFixedChargeCoverageRatio	1.2
CY2021Q2	ghm	Percentage Of Minimum Margined Assets On Outstanding Facility PercentageOfMinimumMarginedAssetsOnOutstandingFacility	1
CY2022Q1	us-gaap	Line Of Credit Facility Current Borrowing Capacity LineOfCreditFacilityCurrentBorrowingCapacity	17000000
CY2022Q2	ghm	Minimum Funded Debt To Earnings Before Interest Taxes Depreciation And Amortization MinimumFundedDebtToEarningsBeforeInterestTaxesDepreciationAndAmortization	0
CY2022Q3	ghm	Minimum Funded Debt To Earnings Before Interest Taxes Depreciation And Amortization MinimumFundedDebtToEarningsBeforeInterestTaxesDepreciationAndAmortization	1800000
CY2022	ghm	Maximum Leverage Ratio MaximumLeverageRatio	1.0
CY2023	ghm	Maximum Leverage Ratio MaximumLeverageRatio	1.0
CY2022	ghm	Minimum Funds Debt To Liquidity Prior To Occurrence Of Compliance Date MinimumFundsDebtToLiquidityPriorToOccurrenceOfComplianceDate	10000000
CY2022	ghm	Minimum Funded Debt To Liquidity From And After Occurrence Of Compliance Date MinimumFundedDebtToLiquidityFromAndAfterOccurrenceOfComplianceDate	20000000
CY2022Q1	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	12233000
CY2021Q1	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	11567000
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	-31000
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	2312000
CY2022	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	-11216000
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	3267000
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	924000
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	547000
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	72000
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	62000
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	176000
CY2022	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	749000
CY2021	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	468000
CY2020	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	4000
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	790000
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	1454000
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	727000
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-2648000
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-960000
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-694000
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-155000
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-116000
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-8000
CY2022	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-423000
CY2021	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	508000
CY2020	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	12000
CY2022	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	-7000
CY2021	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	-7000
CY2020	us-gaap	Valuation Allowance Deferred Tax Asset Change In Amount ValuationAllowanceDeferredTaxAssetChangeInAmount	-411000
CY2022	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-3233000
CY2021	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-561000
CY2020	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-287000
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-2443000
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	893000
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	440000
CY2022	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-2355000
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	686000
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-486000
CY2022	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-96000
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-35000
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	120000
CY2022	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	295000
CY2020	us-gaap	Income Tax Reconciliation Nondeductible Expense IncomeTaxReconciliationNondeductibleExpense	55000
CY2021	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	7000
CY2021	ghm	Income Tax Reconciliation Net Operating Loss Carryback IncomeTaxReconciliationNetOperatingLossCarryback	146000
CY2021	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	172000
CY2020	us-gaap	Income Tax Reconciliation Tax Credits Research IncomeTaxReconciliationTaxCreditsResearch	211000
CY2022	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-7000
CY2020	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	411000
CY2022	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	31000
CY2021	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	156000
CY2020	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	1000
CY2022	ghm	Income Tax Reconciliation Foreign Withholding Tax IncomeTaxReconciliationForeignWithholdingTax	138000
CY2021	us-gaap	Income Tax Reconciliation Tax Credits Foreign IncomeTaxReconciliationTaxCreditsForeign	84000
CY2022	ghm	Income Tax Reconciliation Foreign Derived Intangible Income Deduction IncomeTaxReconciliationForeignDerivedIntangibleIncomeDeduction	2000
CY2021	ghm	Income Tax Reconciliation Foreign Derived Intangible Income Deduction IncomeTaxReconciliationForeignDerivedIntangibleIncomeDeduction	81000
CY2020	ghm	Income Tax Reconciliation Foreign Derived Intangible Income Deduction IncomeTaxReconciliationForeignDerivedIntangibleIncomeDeduction	95000
CY2021	ghm	Income Tax Reconciliation Global Intangible Low Taxed Income IncomeTaxReconciliationGlobalIntangibleLowTaxedIncome	405000
CY2020	ghm	Income Tax Reconciliation Global Intangible Low Taxed Income IncomeTaxReconciliationGlobalIntangibleLowTaxedIncome	1000
CY2020	ghm	Income Tax Reconciliation Capital Loss From Sale Of Energy Steel IncomeTaxReconciliationCapitalLossFromSaleOfEnergySteel	325000
CY2022	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-4000
CY2021	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	-1000
CY2020	us-gaap	Income Tax Reconciliation Other Adjustments IncomeTaxReconciliationOtherAdjustments	1000
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	-2443000
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	893000
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	440000
CY2022Q1	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	3345000
CY2021Q1	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	1772000
CY2022Q1	ghm	Deferred Tax Assets Tax Deferred Expense Accrued Compensation DeferredTaxAssetsTaxDeferredExpenseAccruedCompensation	362000
CY2021Q1	ghm	Deferred Tax Assets Tax Deferred Expense Accrued Compensation DeferredTaxAssetsTaxDeferredExpenseAccruedCompensation	147000
CY2022Q1	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Goodwill DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill	180000
CY2022Q1	ghm	Deferred Tax Assets And Liabilities Prepaid Pension Cost DeferredTaxAssetsAndLiabilitiesPrepaidPensionCost	1557000
CY2021Q1	ghm	Deferred Tax Assets And Liabilities Prepaid Pension Cost DeferredTaxAssetsAndLiabilitiesPrepaidPensionCost	1386000
CY2022Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	291000
CY2021Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	347000
CY2022Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	105000
CY2021Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Postretirement Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPostretirementBenefits	131000
CY2022Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Compensated Absences DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsCompensatedAbsences	515000
CY2021Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Compensated Absences DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsCompensatedAbsences	435000
CY2022Q1	ghm	Deferred Tax Assets Liabilities Inventory DeferredTaxAssetsLiabilitiesInventory	899000
CY2021Q1	ghm	Deferred Tax Assets Liabilities Inventory DeferredTaxAssetsLiabilitiesInventory	462000
CY2022Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Warranty Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves	99000
CY2021Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Warranty Reserves DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsWarrantyReserves	140000
CY2022Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	1230000
CY2021Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	585000
CY2022Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	240000
CY2021Q1	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	337000
CY2022Q1	ghm	Deferred Tax Assets Operating Lease Assets DeferredTaxAssetsOperatingLeaseAssets	1954000
CY2021Q1	ghm	Deferred Tax Assets Operating Lease Assets DeferredTaxAssetsOperatingLeaseAssets	22000
CY2022Q1	ghm	Deferred Tax Assets Operating Lease Liabilities DeferredTaxAssetsOperatingLeaseLiabilities	1990000
CY2021Q1	ghm	Deferred Tax Assets Operating Lease Liabilities DeferredTaxAssetsOperatingLeaseLiabilities	23000
CY2022Q1	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Policy Acquisition Cost DeferredTaxLiabilitiesDeferredExpenseDeferredPolicyAcquisitionCost	152000
CY2022Q1	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	158000
CY2022Q1	ghm	Deferred Tax Assets Tax Deferred Expense State Investment Tax Credit DeferredTaxAssetsTaxDeferredExpenseStateInvestmentTaxCredit	1108000
CY2021Q1	ghm	Deferred Tax Assets Tax Deferred Expense State Investment Tax Credit DeferredTaxAssetsTaxDeferredExpenseStateInvestmentTaxCredit	1115000
CY2022Q1	ghm	Deferred Tax Assets Tax Deferred Expense Research And Development Tax Credit DeferredTaxAssetsTaxDeferredExpenseResearchAndDevelopmentTaxCredit	240000
CY2022Q1	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	2748000
CY2022Q1	us-gaap	Deferred Tax Assets Capital Loss Carryforwards DeferredTaxAssetsCapitalLossCarryforwards	4211000
CY2021Q1	us-gaap	Deferred Tax Assets Capital Loss Carryforwards DeferredTaxAssetsCapitalLossCarryforwards	4211000
CY2022Q1	ghm	Deferred Tax Assets Liabilities Other DeferredTaxAssetsLiabilitiesOther	-26000
CY2021Q1	ghm	Deferred Tax Assets Liabilities Other DeferredTaxAssetsLiabilitiesOther	62000
CY2022Q1	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	7698000
CY2021Q1	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	4691000
CY2022Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	5319000
CY2021Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	5326000
CY2022Q1	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	2379000
CY2021Q1	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	635000
CY2022Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	5319000
CY2021Q1	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	5326000
CY2022Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0
CY2021Q1	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0
CY2020Q1	ghm	Percentage Of Business Interest Limitation PercentageOfBusinessInterestLimitation	0.30
CY2020Q1	ghm	Percentage Of Business Interest Limitation PercentageOfBusinessInterestLimitation	0.50
CY2022	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
CY2022Q1	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	29943000
CY2021Q1	us-gaap	Defined Benefit Plan Accumulated Benefit Obligation DefinedBenefitPlanAccumulatedBenefitObligation	32861000
CY2022Q1	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1
CY2021Q1	us-gaap	Defined Benefit Plan Weighted Average Asset Allocations DefinedBenefitPlanWeightedAverageAssetAllocations	1
CY2022	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
CY2022	ghm	Defined Contribution Plan Employer Matching Percent On First Three Percent Employee Salary Deferral DefinedContributionPlanEmployerMatchingPercentOnFirstThreePercentEmployeeSalaryDeferral	1
CY2022	ghm	Defined Contribution Plan Salary Deferral Percentage That Receives Equivalent Company Match DefinedContributionPlanSalaryDeferralPercentageThatReceivesEquivalentCompanyMatch	0.03
CY2022	ghm	Defined Additional Contribution Plan Employer Matching Contribution Percent DefinedAdditionalContributionPlanEmployerMatchingContributionPercent	0.50
CY2022	ghm	Defined Contribution Plan Salary Deferral Percentage That Receives Additional Company Match DefinedContributionPlanSalaryDeferralPercentageThatReceivesAdditionalCompanyMatch	0.02
CY2022Q1	ghm	Company Share Of Medical Premium Cost For Early Retiree Family Coverage Under Other Postretirement Plan CompanyShareOfMedicalPremiumCostForEarlyRetireeFamilyCoverageUnderOtherPostretirementPlan	4000
CY2022Q1	ghm	Company Share Of Medical Premium Cost For Early Retiree Single Coverage Under Other Postretirement Plan CompanyShareOfMedicalPremiumCostForEarlyRetireeSingleCoverageUnderOtherPostretirementPlan	2000
CY2022Q1	ghm	Company Share Of Medical Premium Cost For Regular Retiree Coverage Under Other Postretirement Plan CompanyShareOfMedicalPremiumCostForRegularRetireeCoverageUnderOtherPostretirementPlan	1000
CY2022Q1	us-gaap	Defined Benefit Plan Ultimate Health Care Cost Trend Rate1 DefinedBenefitPlanUltimateHealthCareCostTrendRate1	0.045
CY2022	us-gaap	Defined Benefit Plan Year Health Care Cost Trend Rate Reaches Ultimate Trend Rate DefinedBenefitPlanYearHealthCareCostTrendRateReachesUltimateTrendRate	2026
CY2022	ghm	Defined Benefit Plan Decrement In Health Care Cost Trend Rate DefinedBenefitPlanDecrementInHealthCareCostTrendRate	0.005
CY2022Q1	ghm	Accrued Postretirement Benefit Liability Current AccruedPostretirementBenefitLiabilityCurrent	63000
CY2021Q1	ghm	Accrued Postretirement Benefit Liability Current AccruedPostretirementBenefitLiabilityCurrent	72000
CY2022	ghm	Specific Stop Loss Insurance Coverage Per Employee SpecificStopLossInsuranceCoveragePerEmployee	100
CY2022	us-gaap	Defined Benefit Plan Net Periodic Benefit Cost DefinedBenefitPlanNetPeriodicBenefitCost	1000000
CY2022Q1	ghm	Annual Plan Aggregate Stop Loss Insurance Coverage AnnualPlanAggregateStopLossInsuranceCoverage	2867000
CY2022Q1	ghm	Self Insured Medical Plan Liability SelfInsuredMedicalPlanLiability	116000
CY2021Q1	ghm	Self Insured Medical Plan Liability SelfInsuredMedicalPlanLiability	184000
CY2022	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0
CY2020	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	24000
CY2019Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	39000
CY2019Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	18.76
CY2020	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	2000
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	15.25
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	37000
CY2020Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	18.92
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
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Expirations In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod	4000
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
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Outstanding Weighted Average Remaining Contractual Term2 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsOutstandingWeightedAverageRemainingContractualTerm2	P0Y2M1D
CY2022Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber	33000
CY2022Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageExercisePrice	18.65
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested And Expected To Vest Outstanding Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingWeightedAverageRemainingContractualTerm1	P0Y2M1D
CY2022Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	33000
CY2022Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	18.65
CY2022	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P0Y2M1D
CY2022	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	0
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	0
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	10000
CY2022Q1	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	405000
CY2021	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	1331000
CY2021	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	828000
CY2021	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	2159000
CY2022	us-gaap	Oci Before Reclassifications Net Of Tax Attributable To Parent OciBeforeReclassificationsNetOfTaxAttributableToParent	151000
CY2022	us-gaap	Reclassification From Aoci Current Period Net Of Tax Attributable To Parent ReclassificationFromAociCurrentPeriodNetOfTaxAttributableToParent	775000
CY2022	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	926000
CY2022	us-gaap	Number Of Reportable Segments NumberOfReportableSegments	1
CY2015Q1	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	18000000
CY2022	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	0
CY2021	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	0
CY2020	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	0

Files In Submission

Name	View Source	Status
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0000950170-22-011403-index.html	Edgar Link	pending
0000950170-22-011403.txt	Edgar Link	pending
0000950170-22-011403-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
ghm-20220331.htm	Edgar Link	pending
ghm-20220331.xsd	Edgar Link	pending
ghm-20220331_cal.xml	Edgar Link	unprocessable
ghm-20220331_def.xml	Edgar Link	unprocessable
ghm-20220331_htm.xml	Edgar Link	completed
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ghm-20220331_pre.xml	Edgar Link	unprocessable
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ghm-ex10_6.htm	Edgar Link	pending
ghm-ex21_1.htm	Edgar Link	pending
ghm-ex23_1.htm	Edgar Link	pending
ghm-ex31_1.htm	Edgar Link	pending
ghm-ex31_2.htm	Edgar Link	pending
ghm-ex32_1.htm	Edgar Link	pending
img100545184_0.jpg	Edgar Link	pending
MetaLinks.json	Edgar Link	pending
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report.css	Edgar Link	pending
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$GHM
GRAHAM CORP Stock $ghm

2022 Form 10-K Financial Statement

#000095017022011403 Filed on June 09, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$GHM GRAHAM CORP Stock $ghm

2022 Form 10-K Financial Statement

#000095017022011403 Filed on June 09, 2022

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$GHM
GRAHAM CORP Stock $ghm