Restatement Of Consolidated Financial Statements - Balance Sheet (Details) - USD ($)	Jun. 30, 2017	Dec. 31, 2016	Nov. 20, 2015
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Property	$ 81,777,000	$ 80,564,000
Accumulated depreciation	(1,492,000)	(150,000)
Total real estate assets	80,285,000	80,414,000
Cash and cash equivalents	2,184,000	1,243,000
Escrows and acquisition deposits	1,442,000	2,274,000
Accrued rents and accounts receivable, net of allowance for doubtful accounts	487,000	213,000
Receivable due from related party	1,769,000	2,818,000
Unamortized lease commissions and deferred legal costs, net	1,117,000	1,150,000
Prepaid expenses and other assets	269,000	149,000
Total assets	87,553,000	88,261,000
Notes payable	64,900,000	65,474,000
Accounts payable and accrued expenses	2,568,000	3,509,000
Payable due to related party	785,000	265,000
Convertible notes payable - related parties	198,000	198,000	$ 197,780
Accrued interest payable	32,000	22,000
Negative equity investment in Pillarstone Capital REIT Operating Partnership LP	0
Tenants' security deposits	1,074,000	996,000
Total liabilities	69,557,000	70,464,000
Commitments and contingencies	0	0
Common Shares - $0.01 par value, 400,000,000 authorized: 443,299 shares issued and 405,169 outstanding at June 30, 2017 and December 31, 2016	4,000	4,000
Additional paid-in capital	28,147,000	28,147,000
Accumulated deficit	(27,749,000)	(27,850,000)
Treasury stock, at cost, 38,130 shares	(801,000)	(801,000)
Total Pillarstone Capital REIT shareholders' deficit	(394,000)	(495,000)
Noncontrolling interest in subsidiary	18,390,000	18,292,000
Total equity	17,996,000	17,797,000
Total liabilities and equity	87,553,000	88,261,000
Preferred A Shares
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Preferred stock	3,000	3,000
Preferred C Shares
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Preferred stock	2,000	$ 2,000
As Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Property	0
Accumulated depreciation	0
Total real estate assets	0
Cash and cash equivalents	96,000
Escrows and acquisition deposits	0
Accrued rents and accounts receivable, net of allowance for doubtful accounts	0
Receivable due from related party	0
Unamortized lease commissions and deferred legal costs, net	0
Prepaid expenses and other assets	4,000
Total assets	100,000
Notes payable	0
Accounts payable and accrued expenses	18,000
Payable due to related party	316,000
Convertible notes payable - related parties	198,000
Accrued interest payable	32,000
Negative equity investment in Pillarstone Capital REIT Operating Partnership LP	93,000
Tenants' security deposits	0
Total liabilities	657,000
Commitments and contingencies	0
Common Shares - $0.01 par value, 400,000,000 authorized: 443,299 shares issued and 405,169 outstanding at June 30, 2017 and December 31, 2016	4,000
Additional paid-in capital	28,147,000
Accumulated deficit	(27,912,000)
Treasury stock, at cost, 38,130 shares	(801,000)
Total Pillarstone Capital REIT shareholders' deficit	(557,000)
Noncontrolling interest in subsidiary	0
Total equity	(557,000)
Total liabilities and equity	100,000
As Reported | Preferred A Shares
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Preferred stock	3,000
As Reported | Preferred C Shares
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Preferred stock	2,000
Effect of Restatement
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Property	81,777,000
Accumulated depreciation	(1,492,000)
Total real estate assets	80,285,000
Cash and cash equivalents	2,088,000
Escrows and acquisition deposits	1,442,000
Accrued rents and accounts receivable, net of allowance for doubtful accounts	487,000
Receivable due from related party	1,769,000
Unamortized lease commissions and deferred legal costs, net	1,117,000
Prepaid expenses and other assets	265,000
Total assets	87,453,000
Notes payable	64,900,000
Accounts payable and accrued expenses	2,550,000
Payable due to related party	469,000
Convertible notes payable - related parties	0
Accrued interest payable	0
Negative equity investment in Pillarstone Capital REIT Operating Partnership LP	(93,000)
Tenants' security deposits	1,074,000
Total liabilities	68,900,000
Commitments and contingencies	0
Common Shares - $0.01 par value, 400,000,000 authorized: 443,299 shares issued and 405,169 outstanding at June 30, 2017 and December 31, 2016	0
Additional paid-in capital	0
Accumulated deficit	163,000
Treasury stock, at cost, 38,130 shares	0
Total Pillarstone Capital REIT shareholders' deficit	163,000
Noncontrolling interest in subsidiary	18,390,000
Total equity	18,553,000
Total liabilities and equity	87,453,000
Effect of Restatement | Preferred A Shares
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Preferred stock	0
Effect of Restatement | Preferred C Shares
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Preferred stock	$ 0