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Fair Value Measurements (Details 1) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2015
Business Combination Contingent Consideration Liability [Roll Forward]      
Balance, June 30, 2016 $ (9,172)    
Acquisition-related accrued interest (1,373) $ (1,476) $ (613)
Balance, June 30, 2017 (11,751) (9,172)  
Fair values | Level 3      
Business Combination Contingent Consideration Liability [Roll Forward]      
Balance, June 30, 2016 (6,745) (5,465)  
Adjustment to contingent consideration 404  
Acquisition-related accrued interest (1,373) (1,476)  
Payment 70 196  
Balance, June 30, 2017 $ (7,644) $ (6,745) $ (5,465)