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DISCONTINUED OPERATIONS (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Oct. 31, 2012 | Oct. 31, 2011 | Oct. 31, 2012 | Oct. 31, 2011
DISCONTINUED OPERATIONS [Abstract] |  |  |  |
Number Of Condominium Units Sold |  |  | 2 |
Number of multi-family residential properties sold |  |  | 2 |
REVENUE |  |  |  |
Real estate rentals | $ 53,389 | $ 49,371 | $ 104,719 | $ 97,804
Tenant reimbursement | 11,554 | 10,829 | 22,210 | 21,560
TOTAL REVENUE | 64,943 | 60,200 | 126,929 | 119,364
EXPENSES |  |  |  |
Depreciation/amortization related to real estate investments | 15,707 | 14,116 | 31,096 | 28,190
Utilities | 4,859 | 4,848 | 9,057 | 8,792
Maintenance | 6,511 | 6,888 | 13,853 | 13,653
Real estate taxes | 8,281 | 7,624 | 16,628 | 15,381
Insurance | 954 | 773 | 1,862 | 1,638
Property management expenses | 4,199 | 5,394 | 8,245 | 10,705
Other expenses | 513 | 835 | 1,032 | 1,150
Amortization related to non-real estate investments | 799 | 758 | 1,632 | 1,492
TOTAL EXPENSES | 43,884 | 43,340 | 87,562 | 85,286
Interest expense | (16,300) | (16,193) | (32,723) | (31,978)
Interest income | 88 | 37 | 106 | 90
Gain on sale of discontinued operations |  |  | 2,680 | 589
INCOME FROM DISCONTINUED OPERATIONS | 2,785 | 611 | 2,754 | 598
Discontinued Operations [Member] |  |  |  |
REVENUE |  |  |  |
Real estate rentals | 317 | 449 | 751 | 916
Tenant reimbursement | 0 | 39 | 0 | 36
TOTAL REVENUE | 317 | 488 | 751 | 952
EXPENSES |  |  |  |
Depreciation/amortization related to real estate investments | 50 | 77 | 114 | 169
Utilities | 30 | 52 | 63 | 106
Maintenance | 44 | 74 | 127 | 137
Real estate taxes | 32 | 52 | 75 | 98
Insurance | 9 | 12 | 23 | 24
Property management expenses | 51 | 74 | 112 | 144
TOTAL EXPENSES | 216 | 341 | 514 | 678
Interest expense | (69) | (125) | (163) | (265)
Income from discontinued operations before gain on sale | 32 | 22 | 74 | 9
Gain on sale of discontinued operations | 2,753 | 589 | 2,680 | 589
INCOME FROM DISCONTINUED OPERATIONS | $ 2,785 | $ 611 | $ 2,754 | $ 598

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