Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Numerator:
Net income from continuing operations	$ 914	$ 1,849	$ 2,980	$ 7,391
Less: Net income attributable to noncontrolling interests	(14)	(42)	(58)	(168)
Distributions paid on unvested restricted shares	0	0	0	(41)
Income from continuing operations attributable to Whitestone REIT excluding amounts attributable to unvested restricted shares	900	1,807	2,922	7,182
Income from discontinued operations	0	0	0	701
Less: Net income attributable to noncontrolling interests	0	0	0	(16)
Income from discontinued operations attributable to Whitestone REIT	0	0	0	685
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares	$ 900	$ 1,807	$ 2,922	$ 7,867
Denominator:
Weighted average number of common shares - basic (in shares)	42,346,000	40,187,000	42,202,000	39,942,000
Effect of dilutive securities:
Unvested restricted shares (in shares)	1,094,000	1,259,000	838,000	1,142,000
Weighted average number of common shares - dilutive (in shares)	43,440,000	41,446,000	43,040,000	41,084,000
Basic:
Income from continuing operations attributable to Whitestone REIT, excluding amounts attributable to unvested restricted shares (in dollars per share)	$ 0.02	$ 0.04	$ 0.07	$ 0.18
Income from discontinued operations attributable to Whitestone REIT (in dollars per share)	0.00	0.00	0.00	0.02
Net income attributable to common shareholders, excluding amounts attributable to unvested restricted shares (in dollars per share)	0.02	0.04	0.07	0.20
Diluted:
Income from continuing operations attributable to Whitestone REIT, excluding amounts attributable to unvested restricted shares (in dollars per share)	0.02	0.04	0.07	0.17
Income from discontinued operations attributable to Whitestone REIT (in dollars per share)	0.00	0.00	0.00	0.02
Net income attributable to common shareholders, excluding amounts attributable to unvested restricted shares (in dollars per share)	$ 0.02	$ 0.04	$ 0.07	$ 0.19
OP Units [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
OP units excluded from diluted earnings per share because their effect would be anti-dilutive (in shares)	776,233	926,639	836,148	926,986
Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Distributions to holders of certain restricted common shares				$ 41

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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Balance Type:	na
Period Type:	duration

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