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Business Acquisition Pro Forma Results of Operations (Detail) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
Jun. 30, 2015
Jun. 30, 2015
Business Combinations [Abstract]    
Net sales $ 34,157 $ 89,282
Net loss $ (1,562) $ (2,410)
Net loss per share (basic) (in dollars per share) $ (0.29) $ (0.44)
Net loss per share (diluted) (in dollars per share) $ (0.29) $ (0.44)