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NONCONTROLLING INTERESTS (Details) (USD $) In Thousands, unless otherwise specified | 12 Months Ended |  |
--- | --- | --- | ---
Apr. 30, 2012 Unit | Apr. 30, 2014 | Apr. 30, 2013
Noncontrolling Interest [Line Items] |  |  |  |
Noncontrolling interests - consolidated real estate entities |  | $ 22,638 | $ 20,118 | [1]
Number of units in building | 32 |  |  |
Mendota Properties LLC [Member] |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Noncontrolling interests - consolidated real estate entities |  | 7,333 | 7,236 |
IRET-1715 YDR, LLC [Member] |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Noncontrolling interests - consolidated real estate entities |  | 0 | 1,003 |
IRET-Williston Garden Apartments, LLC [Member] |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Noncontrolling interests - consolidated real estate entities |  | 2,804 | 2,597 |
IRET-Jamestown Medical Building, LLC [Member] |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Noncontrolling interests - consolidated real estate entities |  | 1,219 | 1,396 |
WRH Holding, LLC [Member] |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Noncontrolling interests - consolidated real estate entities |  | 1,206 | 1,118 |
IRET-Cypress Court Apartments, LLC [Member] |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Noncontrolling interests - consolidated real estate entities |  | 1,127 | 1,149 |
IRET-WRH 1, LLC [Member] |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Noncontrolling interests - consolidated real estate entities |  | 5,672 | 5,619 |
IRET-RED 20, LLC [Member] |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Noncontrolling interests - consolidated real estate entities |  | $ 3,277 | $ 0 |
[1] | (as revised)

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- Definition Number of units in building. + References No definition available. + Details
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Balance Type: | na
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X
- Definition Carrying amount of the equity interests owned by noncontrolling partners in an operating partnership included in the entity's consolidated financial statements. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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- Details
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