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Accumulated Other Comprehensive Income (Loss) | 12 Months Ended
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Apr. 30, 2017
Equity [Abstract] |
Accumulated Other Comprehensive Income (Loss) | Note 6—Accumulated Other Comprehensive Income (Loss) The Company’s other comprehensive income (loss) consists of unrealized gains and losses on the translation of the assets, liabilities, and equity of its foreign subsidiaries, changes in the fair value of its cash flow hedges, and additional minimum pension liability adjustments, net of income taxes. The before tax income (loss), related income tax effect, and accumulated balances are as follows:
$ in thousands |  | Cash Flow Hedges |  |  | Foreign Currency Translation Adjustment |  |  | Minimum Pension Liability Adjustment |  |  | Total Accumulated Other Comprehensive Income (Loss) |
Balance at April 30, 2014 |  | $ | (132) |  |  | $ | (665) |  |  | $ | (5,476) |  |  | $ | (6,273) |
Effect of changes in tax rates |  |  | (2) |  |  |  | — |  |  |  | 63 |  |  |  | 61 |
Foreign currency translation adjustment |  |  | — |  |  |  | (346) |  |  |  | — |  |  |  | (346) |
Change in fair value of cash flow hedges |  |  | 8 |  |  |  | — |  |  |  | — |  |  |  | 8 |
Change in unrecognized actuarial loss on pension obligations |  |  | — |  |  |  | — |  |  |  | (2,049) |  |  |  | (2,049) |
Income tax effect |  |  | (1) |  |  |  | — |  |  |  | 720 |  |  |  | 719 |
Balance at April 30, 2015 |  |  | (127) |  |  |  | (1,011) |  |  |  | (6,742) |  |  |  | (7,880) |
Effect of changes in tax rates |  |  | 1 |  |  |  | — |  |  |  | 88 |  |  |  | 89 |
Foreign currency translation adjustment |  |  | — |  |  |  | (217) |  |  |  | — |  |  |  | (217) |
Change in fair value of cash flow hedges |  |  | 37 |  |  |  | — |  |  |  | — |  |  |  | 37 |
Change in unrecognized actuarial loss on pension obligations |  |  | — |  |  |  | — |  |  |  | 716 |  |  |  | 716 |
Income tax effect |  |  | (15) |  |  |  | — |  |  |  | (356) |  |  |  | (371) |
Balance at April 30, 2016 |  |  | (104) |  |  |  | (1,228) |  |  |  | (6,294) |  |  |  | (7,626) |
Effect of changes in tax rates |  |  | 1 |  |  |  | — |  |  |  | 30 |  |  |  | 31 |
Foreign currency translation adjustment |  |  | — |  |  |  | 231 |  |  |  | — |  |  |  | 231 |
Change in fair value of cash flow hedges |  |  | 104 |  |  |  | — |  |  |  | — |  |  |  | 104 |
Change in unrecognized actuarial loss on pension obligations |  |  | — |  |  |  | — |  |  |  | 1,609 |  |  |  | 1,609 |
Income tax effect |  |  | (41) |  |  |  | — |  |  |  | (627) |  |  |  | (668) |
Balance at April 30, 2017 |  | $ | (40) |  |  | $ | (997) |  |  | $ | (5,282) |  |  | $ | (6,319) |

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- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e689-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669619-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e640-108580 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e716-108580 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e709-108580 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e637-108580 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e681-108580 Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Reclassification Adjustments -URI http://asc.fasb.org/extlink&oid=6522872 + Details
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