Restatement of Consolidated Financial Statements - Income Statement (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Rental revenues	$ 3,536	$ 0
Other revenues	628	0
Total property revenues	4,164	0
Property operation and maintenance	1,287	0
Real estate taxes	648	0
Total property expenses	1,935	0
General and administrative	281	35
Depreciation and amortization	716	0
Interest expense	675	5
Total other expense	1,672	40
Income (loss) before loss on disposal of assets and income taxes	557	(40)
Loss on disposal of assets	(6)	0
Equity in income of Pillarstone Capital REIT Operating Partnership LP	0
Provision for income taxes	(25)	0
Net income (loss)	526	(40)
Less: Non-controlling interests in subsidiary	553	0
Net loss attributable to Common Shareholders	$ (27)	$ (40)
Net income (loss) attributable to Common Shareholders per Common Share: Basic and Diluted (usd per share)	$ (0.07)	$ (0.10)
Effect of Restatement
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Rental revenues	$ 3,536
Other revenues	628
Total property revenues	4,164
Property operation and maintenance	1,287
Real estate taxes	648
Total property expenses	1,935
General and administrative	133
Depreciation and amortization	716
Interest expense	671
Total other expense	1,520
Income (loss) before loss on disposal of assets and income taxes	709
Loss on disposal of assets	(6)
Equity in income of Pillarstone Capital REIT Operating Partnership LP	(64)
Provision for income taxes	(25)
Net income (loss)	614
Less: Non-controlling interests in subsidiary	553
Net loss attributable to Common Shareholders	$ 61
Net income (loss) attributable to Common Shareholders per Common Share: Basic and Diluted (usd per share)	$ 0.15
As Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Rental revenues	$ 0
Other revenues	0
Total property revenues	0
Property operation and maintenance	0
Real estate taxes	0
Total property expenses	0
General and administrative	148
Depreciation and amortization	0
Interest expense	4
Total other expense	152
Income (loss) before loss on disposal of assets and income taxes	(152)
Loss on disposal of assets	0
Equity in income of Pillarstone Capital REIT Operating Partnership LP	64
Provision for income taxes	0
Net income (loss)	(88)
Less: Non-controlling interests in subsidiary	0
Net loss attributable to Common Shareholders	$ (88)
Net income (loss) attributable to Common Shareholders per Common Share: Basic and Diluted (usd per share)	$ (0.22)