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Securities - Calls of securities available for sale (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Mar. 31, 2022
Mar. 31, 2021
Debt Securities, Available-for-sale [Line Items]        
Gross realized gains $ 0 $ 0 $ 0 $ 800
Gross realized losses 0 0 0 (385)
Net gain on sales of securities 0 0 0 415
Calls of Securities [Member]        
Debt Securities, Available-for-sale [Line Items]        
Gross realized gains 3 18 4 39
Gross realized losses 0 0 0 0
Net gain on sales of securities $ 3 $ 18 $ 4 $ 39