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Related Party Transactions (Details) - USD ($)		1 Months Ended	12 Months Ended
Related Party Transactions (Details) - USD ($)	Dec. 08, 2016	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Related Party Transaction [Line Items]
Accounts payable - related party		$ 316,103	$ 316,103	$ 316,103
Equity investment in Pillarstone Capital REIT Operating Partnership LP		14,776	0	14,776
Distributions from equity method investment			290,089	0
Equity in income of Pillarstone Capital REIT Operating Partnership LP			275,313	14,776
Distribution from equity method investment, total return on investment			378,969
Negative equity investment in Pillarstone Capital REIT Operating Partnership LP		0	88,880	0
Pillarstone OP [Member]
Related Party Transaction [Line Items]
Equity investment in Pillarstone Capital REIT Operating Partnership LP	$ 4,121,312	14,776	$ (88,880)	$ 14,776
Ownership percentage			18.60%
Distributions from equity method investment		$ 4,121,321	$ 378,969
Pillarstone Variable Interest Entity [Member]
Related Party Transaction [Line Items]
Consideration, limited partnership interest (in dollars per share)	$ 1.331
Purchase unit agreement, amount	$ 3,000,000
Purchase unit agreement, share price (in dollars per share)	$ 1.331
Purchase agreement term	2 years
Accounts Payable [Member]
Related Party Transaction [Line Items]
Concentration risk			77.00%	92.00%
General and Administrative Expense [Member]
Related Party Transaction [Line Items]
Concentration risk				64.30%