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Comprehensive Income (Tables) | 12 Months Ended
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Apr. 30, 2015
Comprehensive Income (Loss) Note [Abstract] |
Schedule of components of comprehensive income included in the consolidated statements of changes in shareholders' equity |
|  | Fiscal Year Ended April 30, 2015 |
($ in thousands) |  | Amount Before Tax |  |  | Tax Expense/ (Benefit) |  |  | Amount Net of Tax
Change in unrealized gains on securities |  | $ | (274 | ) |  | $ | 96 |  |  | $ | (178 | )
Less: Gains realized in net income |  |  | 57 |  |  |  | (20 | ) |  |  | 37 |
|  | $ | (217 | ) |  | $ | 76 |  |  | $ | (141 | )
|  | Fiscal Year Ended April 30, 2014 |
($ in thousands) |  | Amount Before Tax |  |  | Tax Expense/ (Benefit) |  |  | Amount Net of Tax
Change in unrealized gains on securities |  | $ | 28 |  |  | $ | (10 | ) |  | $ | 18 |
Less: Gains realized in net income |  |  | (36 | ) |  |  | 13 |  |  |  | (23 | )
|  | $ | (8 | ) |  | $ | 3 |  |  | $ | (5 | )
|  | Fiscal Year Ended April 30, 2013 |
($ in thousands) |  | Amount Before Tax |  |  | Tax Expense |  |  | Amount Net of Tax |
Change in unrealized gains on securities |  | $ | 256 |  |  | $ | (90 | ) |  | $ | 166 |
|  | $ | 256 |  |  | $ | (90 | ) |  | $ | 166 |

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- Definition Tabular disclosure of components of comprehensive income (loss). Includes, but is not limited to, foreign currency translation adjustments, foreign currency transactions designated as economic hedges of a net investment in foreign entity, gain (loss) and prior service cost (credit) for pension plans and other postretirement benefit plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=36458714&loc=d3e526-108580 + Details
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