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Document and Entity Information - USD ($)
 12 Months Ended
Jun. 30, 2016
Sep. 21, 2016
Dec. 31, 2015
Document And Entity Information [Abstract]      
Entity Registrant Name ASTROTECH Corp    
Entity Central Index Key 0001001907    
Trading Symbol astc    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Current Fiscal Year End Date --06-30    
Entity Filer Category Smaller Reporting Company    
Entity Well-known Seasoned Issuer No    
Entity Common Stock, Shares Outstanding   20,766,842  
Entity Public Float     $ 31,672,030
Document Type 10-K    
Document Period End Date Jun. 30, 2016    
Amendment Flag false    
Document Fiscal Period Focus FY    
Document Fiscal Year Focus 2016