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Debt Securities - Narrative (Details)
3 Months Ended
Sep. 30, 2022
USD ($)
security
Sep. 30, 2021
USD ($)
Jun. 30, 2022
USD ($)
security
Debt Securities, Available-for-sale [Line Items]      
Estimated Fair Value $ 161,741,000   $ 126,978,000
Proceeds from sale of securities available for sale 0 $ 0  
Gross realized gain (loss) 0 $ 0  
Securities available for sale pledged as collateral market value $ 65,439,000   $ 41,876,000
Number of securities with unrealized losses | security 208   177
Accrued interest receivable for investment securities available for sale $ 600,000    
Collateral Pledged      
Debt Securities, Available-for-sale [Line Items]      
Estimated Fair Value $ 67,877,000   $ 43,187,000