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Fair Value Measurements (Details 1) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Business Combination Contingent Consideration Liability [Roll Forward]        
Acquisition-related accrued interest $ (252) $ (462) $ (505) $ (855)
Fair values | Level 3        
Business Combination Contingent Consideration Liability [Roll Forward]        
Balance, June 30, 2017     (7,644)  
Acquisition-related accrued interest     (505)  
Payment     70  
Balance, December 31, 2017 $ (8,079)   $ (8,079)