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Business, Acquisition of Assets and Basis of Presentation - Additional Information (Detail)
 12 Months Ended
Sep. 30, 2015
USD ($)
Jun. 08, 2015
May. 31, 2015
USD ($)
Jun. 30, 2015
USD ($)
Jun. 30, 2014
USD ($)
May. 20, 2015
USD ($)
Business Acquisition [Line Items]            
Labour and other overhead costs       $ 264,000 $ 253,000  
Percent of common stock       81.50%    
Reverse stock split, description       On June 8, 2015, in connection with the reincorporation as a Delaware corporation, we effected a reverse stock split in which each common stock holder received one share of common stock for each every 12.174 shares then outstanding (the "Reverse Stock Split").    
Reverse stock split ratio   12.174        
Business Acquisition, acquisition cost       $ 1,000,000    
Value of contingent consideration       $ 664,000    
Total fair value consideration           $ 2,391,000
Amortization Period       10 years    
Prostascint Business [Member]            
Business Acquisition [Line Items]            
Business Acquisition, acquisition cost     $ 1,000,000      
Business Acquisition, liabilities incurred     500,000      
Restructuring payment, contingent consideration       Aytu also will pay 8% as contingent consideration on its net sales made after October 31, 2017, payable up to a maximum aggregate payment of an additional $2.5 million.    
Business Acquisition, future contingent payments     $ 2,500,000      
Contingent consideration percentage     8.00%      
Value of contingent consideration     $ 664,000      
Total fair value consideration     $ 2,400,000      
Prostascint Business [Member] | Scenario, Forecast [Member]            
Business Acquisition [Line Items]            
Business Acquisition, liabilities incurred $ 227,000