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Summary of Significant Accounting Policies and New Accounting Standards (Details 2) - USD ($)
$ in Thousands
Mar. 31, 2019
Jun. 30, 2018
ASSETS    
Other current assets $ 24,002 $ 22,381
Other assets 43,724 46,784
Other liabilities 43,498 43,702
Retained earnings 164,978 $ 131,560
Effect of adoption    
ASSETS    
Other current assets 163  
Other assets 175  
Other liabilities (162)  
Retained earnings $ 500