Document and Entity Information - shares	9 Months Ended
	Mar. 31, 2017	May 04, 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
Entity Common Stock, Shares Outstanding		20,564,551
Document Type	10-Q
Document Period End Date	Mar. 31, 2017
Amendment Flag	false
Document Fiscal Period Focus	Q3
Document Fiscal Year Focus	2017