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Employee Benefit Plans - Narrative (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2020
Retirement Benefits [Abstract]      
Employee stock ownership plan, minimum age for eligibility 21 years    
Employer matching contribution, percent of match 50.00%    
Employer matching contribution, percent of employees' gross pay 6.00%    
Employee service period 4 years    
Defined contribution plan, administrative expenses $ 911 $ 914 $ 782
ESOP compensation expense 1,502 1,125 1,195
Executive Medical Care Plan (EMCP) expenses 219 263 $ 260
Executive Medical Care Plan (EMCP) accrued expenses $ 5,533 $ 5,444