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Summary of Revenue And Net Income (Loss) for Properties Acquired (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2017
Business Acquisition Pro Forma Information Nonrecurring Adjustment [Line Items]
Total revenue	$ 966	$ 1,235
Net income (loss) allocable to common shares	226	300
Lakes of Northdale
Business Acquisition Pro Forma Information Nonrecurring Adjustment [Line Items]
Total revenue	771	1,040
Net income (loss) allocable to common shares	150	224
Haverford Place
Business Acquisition Pro Forma Information Nonrecurring Adjustment [Line Items]
Total revenue	185	185
Net income (loss) allocable to common shares	71	71
South Terrace
Business Acquisition Pro Forma Information Nonrecurring Adjustment [Line Items]
Total revenue	10	10
Net income (loss) allocable to common shares	$ 5	$ 5

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- Definition

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- Definition

This element represents the amount of earnings or loss of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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- Definition

This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period.

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-Topic 805
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