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NONCONTROLLING INTERESTS (Details) - USD ($) $ in Thousands | Apr. 30, 2016 | Apr. 30, 2015
--- | --- | ---
Noncontrolling Interest [Line Items] |  |
Noncontrolling interests - consolidated real estate entities | $ 21,020 | $ 30,519
IRET - 71 France, LLC [Member] |  |
Noncontrolling Interest [Line Items] |  |
Noncontrolling interests - consolidated real estate entities | 8,070 | 8,630
IRET-Cypress Court Apartments, LLC [Member] |  |
Noncontrolling Interest [Line Items] |  |
Noncontrolling interests - consolidated real estate entities | 1,042 | 1,089
IRET-RED 20, LLC [Member] |  |
Noncontrolling Interest [Line Items] |  |
Noncontrolling interests - consolidated real estate entities | 2,410 | 3,072
IRET-Williston Garden Apartments, LLC [Member] |  |
Noncontrolling Interest [Line Items] |  |
Noncontrolling interests - consolidated real estate entities | 3,014 | 3,090
IRET-WRH 1, LLC [Member] |  |
Noncontrolling Interest [Line Items] |  |
Noncontrolling interests - consolidated real estate entities | 5,266 | 6,138
Mendota Properties LLC [Member] |  |
Noncontrolling Interest [Line Items] |  |
Noncontrolling interests - consolidated real estate entities |  | 7,294
WRH Holding, LLC [Member] |  |
Noncontrolling Interest [Line Items] |  |
Noncontrolling interests - consolidated real estate entities | 1,195 | $ 1,206
Other Noncontrolling Interests [Member] |  |
Noncontrolling Interest [Line Items] |  |
Noncontrolling interests - consolidated real estate entities | $ 23 |

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