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Document and Entity Information - shares
9 Months Ended
Mar. 31, 2016
May. 05, 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   20,647,278
Document Type 10-Q  
Document Period End Date Mar. 31, 2016  
Amendment Flag false  
Document Fiscal Period Focus Q3  
Document Fiscal Year Focus 2016