Employee Benefits - Summary Information for Plans (Comprised Solely of One Domestic Plan) (Detail) - USD ($) $ in Thousands		12 Months Ended
		Jun. 30, 2023	Jun. 30, 2022
Change in Benefit Obligation:
Benefit obligation at beginning of year		$ 1,172	$ 1,535
Interest cost		52	42
Actuarial (gain) loss		(67)	(378)
Benefits paid		(332)	(27)
Effect of settlements		23	0
Benefit obligation end of year		848	1,172
Change in Fair Value of Plan Assets:
Beginning fair value		1,041	1,080
Actual return (loss) on plan assets		51	(112)
Contribution by employer		88	100
Benefits paid		(332)	(27)
Plan assets at end of year		848	1,041
Funded status of the plans		0	(131)
Unrecognized actuarial (gain) loss		(20)	24
Accrued benefit cost		(20)	(107)
Amounts Recognized in Consolidated Balance Sheets
Accrued benefit cost		(20)	(107)
Accumulated other comprehensive loss	[1]	(20)	24
Net amount recognized		$ 0	$ (131)

[1] Accumulated other comprehensive loss represents minimum pension liability adjustments.