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FAIR VALUE MEASUREMENTS (Details) $ in Thousands | Apr. 30, 2018 USD ($) | Apr. 30, 2017 USD ($)
--- | --- | ---
FINANCIAL LIABILITIES |  |
Mortgages payable | $ 509,919 | $ 565,978
Carrying Amount [Member] |  |
FINANCIAL ASSETS |  |
Cash and cash equivalents | 11,891 | 28,819
FINANCIAL LIABILITIES |  |
Other debt, including other debt related to assets held for sale | 0 | 49,637
Revolving line of credit | 124,000 | 57,050
Term loan | 70,000 | 0
Mortgages payable | 509,919 | 665,440
Mortgages payable related to assets held for sale | 0 | 21,803
Fair Value [Member] |  |
FINANCIAL ASSETS |  |
Cash and cash equivalents | 11,891 | 28,819
FINANCIAL LIABILITIES |  |
Other debt, including other debt related to assets held for sale | 0 | 49,637
Revolving line of credit | 124,000 | 57,050
Term loan |  | 0
Mortgages payable | 510,803 | 680,941
Mortgages payable related to assets held for sale | 0 | 21,861
Recurring [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Derivative instrument - interest rate swap | 1,779 |
Recurring [Member] | Level 1 [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Derivative instrument - interest rate swap | 0 |
Recurring [Member] | Level 2 [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Derivative instrument - interest rate swap | 1,779 |
Recurring [Member] | Level 3 [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Derivative instrument - interest rate swap | 0 |
Nonrecurring [Member] |  |
Fair Value Measurements on a Nonrecurring Basis [Abstract] |  |
Real estate investments valued at fair value | 52,145 | 506
Real estate held for sale |  | 10,891
Nonrecurring [Member] | Level 1 [Member] |  |
Fair Value Measurements on a Nonrecurring Basis [Abstract] |  |
Real estate investments valued at fair value | 0 | 0
Real estate held for sale |  | 0
Nonrecurring [Member] | Level 2 [Member] |  |
Fair Value Measurements on a Nonrecurring Basis [Abstract] |  |
Real estate investments valued at fair value | 0 | 0
Real estate held for sale |  | 0
Nonrecurring [Member] | Level 3 [Member] |  |
Fair Value Measurements on a Nonrecurring Basis [Abstract] |  |
Real estate investments valued at fair value | $ 52,145 | 506
Real estate held for sale |  | $ 10,891
Measurement Input, Cap Rate [Member] | Nonrecurring [Member] |  |
Fair Value Measurements on a Nonrecurring Basis [Abstract] |  |
Capitalization rate (as a percent) |  | 0.070

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