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Income Taxes - Reconciliation of Income Tax Expense at the Statutory Rate (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Mar. 31, 2020	Mar. 31, 2019
Income Taxes Paid, Net [Abstract]
Computed at the statutory rate	$ 236	$ 229	$ 835	$ 721
Decrease resulting from
Tax exempt interest	(2)	(6)	(13)	(19)
Cash surrender value of life insurance	(14)	(14)	(43)	(42)
State income taxes	86	73	299	231
Other	10	4	25	19
Income tax expense	$ 316	$ 286	$ 1,103	$ 910

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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The amount of income tax expense or benefit for the period computed by applying the domestic federal statutory tax rates to pretax income from continuing operations.

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