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Income Taxes - Components of the Provision for Income Taxes (Detail) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Income Tax Disclosure [Abstract]    
Taxes currently payable $ 1,654 $ 1,217
Deferred income taxes (15) 76
Income tax expense $ 1,639 $ 1,293