Investment Properties and Properties Held for Sale - Components of Discontinued Operations Included in Statements of Income (Detail) (USD $)	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Revenues:
Rental income	$ 0	$ 16,650
Total Revenues	0	16,650
Expenses:
Depreciation expense	0	3,688
Amortization expense	0	445
Total Expenses	0	4,133
Net Income from Discontinued Operations	$ 0	$ 12,517

Overall income (loss) from a disposal group that is classified as a component of the entity, before income tax, reported as a separate component of income before extraordinary items. Includes the following (before income tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 45

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-04.12)

-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 13

-Article 7

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 05

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- Definition

Amount of rental income attributable to the disposal group, including a component of the entity (discontinued operation).

+ References

No definition available.

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- Definition

Amount of sales or other form of revenues attributable to the disposal group, including a component of the entity (discontinued operation), during the reporting period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 205

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=6360339&loc=d3e1361-107760

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- Definition

Disposal group including discontinued operation, amortization expenses.

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Disposal group including discontinued operation, depreciation expenses.

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- Definition

Income expense from discontinued operations.

+ References

No definition available.

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