Employee Benefits - Summary Information for Plans (Comprised Solely of One Domestic Plan) (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Change in Benefit Obligation:
Benefit obligation at beginning of year	$ 1,535	$ 1,574
Interest cost	42	40
Actuarial (gain) loss	(378)	(51)
Benefits paid	(27)	(28)
Benefit obligation end of year	1,172	1,535
Change in Fair Value of Plan Assets:
Beginning fair value	1,080	923
Actual return (loss) on plan assets	(112)	85
Contribution by employer	100	100
Benefits paid	(27)	(28)
Plan assets at end of year	1,041	1,080
Funded status of the plans	(131)	(455)
Unrecognized actuarial loss	24	293
Accrued benefit cost	(107)	(162)
Amounts Recognized in Consolidated Balance Sheets
Accrued benefit cost	(107)	(162)
Accumulated other comprehensive loss	24	293
Net amount recognized	$ (131)	$ (455)