Document and Entity Information - shares	3 Months Ended
	Sep. 30, 2017	Nov. 09, 2017
Document And Entity Information [Abstract]
Entity Registrant Name	ASTROTECH Corp
Entity Central Index Key	0001001907
Trading Symbol	astc
Current Fiscal Year End Date	--06-30
Entity Filer Category	Smaller Reporting Company
Document Type	10-Q
Document Period End Date	Sep. 30, 2017
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding		4,506,473