Net Loss per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Amounts attributable to Astrotech Corporation, basic and diluted:
Loss before income taxes	$ (2,654)	$ (2,608)	$ (6,121)	$ (6,059)
Income tax expense	0	0	0	(2)
Net loss	(2,654)	(2,608)	(6,121)	(6,061)
Less: Net loss attributable to noncontrolling interest	(51)	(82)	(103)	(171)
Net loss attributable to Astrotech Corporation	$ (2,603)	$ (2,526)	$ (6,018)	$ (5,890)
Denominator:
Denominator for basic and diluted net loss per share attributable to Astrotech Corporation — weighted average common stock outstanding (in shares)	20,620	20,701	20,626	20,703
Basic and diluted net loss per common share:
Net loss attributable to Astrotech Corporation (in dollars per share)	$ (0.13)	$ (0.12)	$ (0.29)	$ (0.28)