FAIR VALUE MEASUREMENTS: (Details) - USD ($) $ in Thousands	12 Months Ended
Apr. 30, 2015	Apr. 30, 2014
Real estate inventory	$ 66,321	$ 71,289
Property, plant and equipment	771
Real estate inventory, Impairment Loss Recorded	1,504	406
Investment assets Impairment Loss Recorded	305	280
Fair Value, Inputs, Level 1 [Member]
Real estate inventory	0	0
Investment assets	0	0
Property, plant and equipment	0
Fair Value, Inputs, Level 2 [Member]
Real estate inventory	0	0
Investment assets	0	0
Property, plant and equipment	0
Fair Value, Inputs, Level 3 [Member]
Real estate inventory	2,048	1,285
Investment assets	1,439	$ 787
Property, plant and equipment	$ 0

Loss recognized during the period that results from the inventory during the period

No definition available.

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- Definition

Loss recognized during the period that results from the Investments during the period.

+ References

No definition available.

+ Details

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- Definition

Total of (1) improvements, (2) held-for-sale, (3) land and land under development, (4) construction-in-process, (5) mortgage loans held-in-inventory, and (6) other real estate investments which are considered inventory due to being held for sale or disposition.

+ References

No definition available.

+ Details

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- Definition

Amount of real estate investments, net of accumulated depreciation, which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; (7) other real estate investments; (8) real estate joint ventures; and (9) unconsolidated real estate and other joint ventures not separately presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.1(d))

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

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- Definition

The charge against earnings resulting from the aggregate write down of tangible assets from their carrying value to their fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=51719941&loc=d3e2921-110230

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=51717284&loc=d3e1361-107760

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