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Schedule II - Valuation and Qualifying Accounts | 12 Months Ended
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Mar. 31, 2020
Valuation And Qualifying Accounts [Abstract] |
Schedule II - Valuation and Qualifying Accounts | GRAHAM CORPORATION AND SUBSIDIARIES SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (In Thousands)
|  | Balance at |  |  | Charged to |  |  | Charged to |  |  |  |  |  |  | Balance at |
|  | Beginning |  |  | Costs and |  |  | Other |  |  |  |  |  |  | End of |
Description |  | of Period |  |  | Expenses |  |  | Accounts |  |  | Deductions |  |  | Period |
Year ended March 31, 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reserves deducted from the asset to which they apply: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reserve for doubtful accounts receivable |  | $ | 33 |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | 33 |
Reserves included in the balance sheet caption "accrued expenses" |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Product warranty liability |  | $ | 366 |  |  | $ | 62 |  |  | $ | — |  |  | $ | (69 | ) |  | $ | 359 |
Year ended March 31, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reserves deducted from the asset to which they apply: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reserve for doubtful accounts receivable |  | $ | 339 |  |  | $ | (167 | ) |  | $ | (13 | ) |  | $ | (126 | ) |  | $ | 33 |
Reserves included in the balance sheet caption "accrued expenses" |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Product warranty liability |  | $ | 493 |  |  | $ | 234 |  |  | $ | (85 | ) |  | $ | (276 | ) |  | $ | 366 |
Reserves included in the balance sheet caption "accrued compensation" |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring reserve |  | $ | 18 |  |  | $ | — |  |  | $ | — |  |  | $ | (18 | ) |  | $ | — |
Year ended March 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reserves deducted from the asset to which they apply: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reserve for doubtful accounts receivable |  | $ | 168 |  |  | $ | 177 |  |  | $ | — |  |  | $ | (6 | ) |  | $ | 339 |
Reserves included in the balance sheet caption "accrued expenses" |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Product warranty liability |  | $ | 538 |  |  | $ | 527 |  |  | $ | — |  |  | $ | (572 | ) |  | $ | 493 |
Reserves included in the balance sheet caption "accrued compensation" |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Restructuring reserve |  | $ | 120 |  |  | $ | 316 |  |  | $ | — |  |  | $ | (418 | ) |  | $ | 18 |

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- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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- References No definition available. + Details
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