Equity Method Investment (Details)	1 Months Ended	12 Months Ended
	Dec. 31, 2016 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 08, 2016 USD ($) property subsidiary $ / shares
Schedule of Equity Method Investments [Line Items]
Equity investment in Pillarstone Capital REIT Operating Partnership LP	$ 14,776	$ 0	$ 14,776
Equity in income of Pillarstone Capital REIT Operating Partnership LP		275,313	14,776
Distributions from equity method investment		$ 290,089	0
Pillarstone OP [Member]
Schedule of Equity Method Investments [Line Items]
Ownership percentage		18.60%
Equity investment in Pillarstone Capital REIT Operating Partnership LP	14,776	$ (88,880)	14,776	$ 4,121,312
Conversion ratio, LTIP units to OP units (in shares)		1
Conversion ratio, OP units to common shares (in shares)		1
Difference between carrying amount and net assets		$ (78,000)
Distributions from equity method investment	$ 4,121,321	$ 378,969
Useful life		25 years
Amortization of difference		$ 3,120	$ 0
Pillarstone Variable Interest Entity [Member]
Schedule of Equity Method Investments [Line Items]
Consideration, limited partnership interest (in dollars per share) | $ / shares				$ 1.331
Whitestone [Member] | Pillarstone Variable Interest Entity [Member]
Schedule of Equity Method Investments [Line Items]
Number of wholly-owned subsidiaries contributed to variable interest entity | subsidiary				4
Number of non-core properties contributed to variable interest entity | property				14
Consideration amount				$ 84,000,000
Consideration, limited partnership interest				$ 18,100,000
Consideration, limited partnership interest (in dollars per share) | $ / shares				$ 1.331
Liabilities assumed				$ 65,900,000