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Investments (Detail Textuals) (USD $) | 6 Months Ended |
--- | --- | ---
Oct. 31, 2014 | Oct. 31, 2013 | Apr. 30, 2014
Schedule of Available-for-sale Securities [Line Items] |  |  |
Aggregate cost of equity securities available for sale | $ 8,871,000 |  | $ 8,847,000
Fair value of equity securities | 9,223,000 |  | 9,226,000
Increase (decreases) in gross unrealized gains on equity securities classified as available-for-sale | (27,000) | 61,000 |
Equity Securities |  |  |
Schedule of Available-for-sale Securities [Line Items] |  |  |
Increase (decreases) in gross unrealized gains on equity securities classified as available-for-sale | (27,000) | 61,000 |
Deferred taxes on unrealized gains on securities | 10,000 | 21,000 |
Accumulated other comprehensive income, net of tax | 353,000 |  | 379,000
Deferred taxes on accumulated other comprehensive income | $ 124,000 |  | $ 133,000

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- Definition Amount before tax of unrealized gain in accumulated other comprehensive income (AOCI) on investments in equity securities classified as available-for-sale. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27161-111563 + Details
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- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=28360136&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26610-111562 + Details
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- Definition This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.2) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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