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/A
Document Period End Date	Sep. 30, 2017
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q1
Amendment Flag	true
Amendment Description	This Amendment No. 1 on Form 10-Q/A for the quarter ended September 30, 2017, amends the Form 10-Q that was originally filed with the U.S. Securities and Exchange Commission on November 9, 2017 (the "Original Filing"). The sole purpose of this Amendment No. 1 is to correct an inadvertent error in the calculation of “Net Loss per Common Share” in the Condensed Consolidated Statements of Operations and Comprehensive Loss for the Three Months Ended September 30, 2017 and 2016. The following financial statements and disclosures have been updated in this Form 10-Q/A: Restatement of the Condensed Consolidated Statements of Operations and Comprehensive Loss for the Three Months Ended September 30, 2017 and 2016. Updated Note 6 - Net Loss Per Share. Except as described above, no other changes have been made to the Original Filing or any other exhibits. This Amendment speaks as of the filing date of the Original Filing and does not reflect events occurring after the filing date, or modify or update those disclosures that may be affected by subsequent events. As such, this form 10-Q/A should be read in conjunction with the Original Filing.
Entity Common Stock, Shares Outstanding		4,506,473