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Organization and Summary of Significant Accounting Policies (Income Taxes) (Details) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2015
Accounting Policies [Abstract]      
Estimated deferred tax asset $ 4,256 $ 5,389  
Addition for tax positions of prior years $ 0 $ 0 $ 0