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Note 8 - Leases (Details) - Leased Property Under Capital Leases By Major Classes (USD $) In Thousands, unless otherwise specified | Apr. 30, 2014 | Apr. 30, 2013
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Capital Leased Assets [Line Items] |  |
Capital Leased assets,gross | $ 16,278 | $ 15,486
Less accumulated amortization | 5,202 | 4,900
| 11,076 | 10,586
Real Estate1 [Member] |  |
Capital Leased Assets [Line Items] |  |
Capital Leased assets,gross | 13,668 | 12,874
Equipment [Member] |  |
Capital Leased Assets [Line Items] |  |
Capital Leased assets,gross | $ 2,610 | $ 2,612

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- Definition Amount before accumulated depreciation of leased physical assets used in the normal conduct of business to produce goods and services. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6455314&loc=d3e45014-112735 + Details
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- Details
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Balance Type: | na
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- Definition The total gross amount less the charge for the use of the long-lived depreciable assets subject to a lease meeting the criteria for capitalization. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737 + Details
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- Definition The total charge for the use of long-lived depreciable assets subject to a lease meeting the criteria for capitalization. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6455314&loc=d3e45014-112735 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 2) -URI http://asc.fasb.org/extlink&oid=6584154&loc=d3e38371-112697 + Details
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