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Document and Entity Information - shares
 3 Months Ended
Sep. 30, 2016
Nov. 10, 2016
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   21,179,208
Document Type 10-Q  
Document Period End Date Sep. 30, 2016  
Amendment Flag false  
Document Fiscal Period Focus Q1  
Document Fiscal Year Focus 2017