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Note 8 - Federal, State and Local Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands | Oct. 31, 2020 | Apr. 30, 2020
--- | --- | ---
Right of Use Asset | $ 190 | $ 182
Deferred tax liability | 12,604 | 12,851
Domestic Tax Authority [Member] |  |
Deferred gain on deconsolidation of EAM | 10,669 | 10,669
Deferred non-cash post-employment compensation | (372) | (372)
Depreciation and amortization | 109 | 108
Unrealized gain on securities held for sale | (292) | (299)
Deferred charges | (165) | (166)
Other | (465) | (207)
Deferred tax liability | 9,878 | 10,149
State and Local Jurisdiction [Member] |  |
Deferred gain on deconsolidation of EAM | 2,549 | 2,564
Deferred non-cash post-employment compensation | (89) | (88)
Depreciation and amortization | 26 | 44
Unrealized gain on securities held for sale | 70 | 72
Other | 170 | 110
Deferred tax liability | $ 2,726 | $ 2,702

X
- Definition Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences with jurisdictional netting. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=120406818&loc=d3e31931-109318 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=120406818&loc=d3e31917-109318 + Details
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- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32621-109319 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32632-109319 + Details
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- Definition Amount deferred tax asset attributable to deductible temporary differences from deferred charges, expected to be realized or consumed within one year or operating cycle, if longer. + References No definition available. + Details
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- Definition Amount of deferred tax asset attributable to deductible temporary differences from deferred non-cash postemployment compensation, expected to be realized or consumed after one year (or the normal operating cycle, if longer). + References No definition available. + Details
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- Definition Amount of deferred tax (asset) liability attributable to deductible temporary differences from depreciation and amortization, expected to be realized or consumed after one year (or the normal operating cycle, if longer). + References No definition available. + Details
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- Definition The amount of deferred tax liabilities (asset) related to the unrealized loss (gain) on securities held for sale. + References No definition available. + Details
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from right of use assets. + References No definition available. + Details
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- Definition Amount of deferred tax liability attributable to taxable temporary differences from deferred gain on deconsolidation of subsidiary, expected to be realized or consumed after one year (or the normal operating cycle, if longer). + References No definition available. + Details
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