Net Income (Loss) per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2015	Mar. 31, 2014
Amounts attributable to Astrotech Corporation, basic and diluted:
Loss from continuing operations, net of tax	$ (1,347)	$ (2,173)	$ (4,857)	$ (4,616)
(Loss) income from discontinued operations, net of tax	(753)	(664)	23,618	476
Net (loss) income attributable to Astrotech Corporation	(2,100)	(2,837)	18,761	(4,140)
State of Texas deemed dividend (Note 12)	0	0	(531)	0
Net (loss) income attributable to Astrotech Corporation applicable to common shareholders	$ (2,100)	$ (2,837)	$ 18,230	$ (4,140)
Denominator:
Denominator for basic net (loss) income per share attributable to Astrotech Corporation — weighted average common stock outstanding (in shares)	19,497	19,486	19,561	19,479
Dilutive common stock equivalents - common stock options and share-based awards (in shares)	0	0	0	0
Denominator for diluted net income (loss) per share attributable to Astrotech Corporation - weighted average common stock outstanding and dilutive common stock equivalents (in shares)	19,497	19,486	19,561	19,479
Basic and diluted net income (loss) per common share:
Net loss attributable to Astrotech Corporation from continuing operations (in dollars per share)	$ (0.07)	$ (0.11)	$ (0.28)	$ (0.24)
Net (loss) income from discontinued operations	$ (0.04)	$ (0.03)	$ 1.21	$ 0.02
Net (loss) income attributable to Astrotech Corporation applicable to common shareholders	$ (0.11)	$ (0.14)	$ 0.93	$ (0.22)