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Goodwill and Other Intangible Assets (Details Textual) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2018
Jun. 30, 2017
Jun. 30, 2016
Goodwill and Intangible Assets Disclosure [Abstract]      
Impairment of Intangible Assets, Finite-lived $ 700    
Backlog received in exchange for settled account receivable 50,000    
Acquired Finite-lived Intangible Asset, Residual Value 2,000    
Amortization expense 4,800 $ 4,900 $ 3,600
June 30, 2019 3,699    
June 30, 2020 3,688    
June 30, 2021 3,669    
June 30, 2022 2,821    
June 30, 2023 2,369    
Thereafter 6,568    
Net carrying amount $ 22,814 $ 26,296