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Revenue Recognition - Additional Information (Detail) (USD $)
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9 Months Ended | |
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Dec. 31, 2014
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Mar. 31, 2014
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| Revenue Recognition [Line Items] | ||
| Company recognizes planned manufacturing process | 28 days | |
| Direct labor hours worked on contracts | 0 days 575 hours | |
| Reserve for credit losses related to unbilled revenue | $ 0ghm_CreditLossRelatedToUnbilledRevenue | |
| Receivables billed but not paid under retainage provisions in its customer contracts | $ 1,401,000us-gaap_ContractReceivableRetainage | $ 901,000us-gaap_ContractReceivableRetainage |
| Minimum [Member] | ||
| Revenue Recognition [Line Items] | ||
| Substantial completion of manufacturing process |
95.00%ghm_SubstantialCompletionOfManufacturingProcess / us-gaap_RangeAxis = us-gaap_MinimumMember |
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- Definition
Planned manufacturing process used in determining the applicable revenue recognition method. No definition available.
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- Definition
Reserve recorded against unbilled revenue for credit losses. No definition available.
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- Definition
Equivalent of four weeks of direct labor hours worked on contracts. No definition available.
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- Details
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- Definition
The percent at which the manufacturing process of a contract must be completed with regard to direct labor hours for the contract to be considered substantially complete. No definition available.
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- Definition
Amount billed to customers under long-term contracts or programs that have been withheld because of retainage provisions in a contract. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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