v3.26.1
Accumulated Other Comprehensive Income (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Dec. 31, 2025
Jun. 30, 2025
Mar. 31, 2025
Dec. 31, 2024
Jun. 30, 2026
Jun. 30, 2025
Accumulated Other Comprehensive Income (Loss) [Line Items]                
Amount reclassified from AOCI, deferred income taxes $ 41     $ 177     $ 150 $ 576
Other comprehensive income (loss) (3,481) $ (4,646) $ 451 1,401 $ 5,490 $ (10,065) (7,676) (3,174)
AOCI [Member]                
Accumulated Other Comprehensive Income (Loss) [Line Items]                
Beginning Balance 11,560   15,755 17,052   21,627 15,755 21,627
Other comprehensive income (loss), before reclassifications (3,351)     1,958     (7,204) (1,365)
Amount reclassified from AOCI, net of taxes (130)     (557)     (472) (1,809)
Other comprehensive income (loss) (3,481) (4,646) 451 1,401 5,490 (10,065) (7,676) (3,174)
Ending Balance 8,079 11,560   18,453 17,052   8,079 18,453
Unrealized Gains (Losses) on AFS Securities [Member]                
Accumulated Other Comprehensive Income (Loss) [Line Items]                
Beginning Balance 10,547   15,052 15,040   20,032 15,052 20,032
Other comprehensive income (loss), before reclassifications (3,872)     2,303     (8,377) (2,689)
Amount reclassified from AOCI, net of taxes 0     0     0 0
Other comprehensive income (loss) (3,872)     2,303     (8,377) (2,689)
Ending Balance 6,675 10,547   17,343 15,040   6,675 17,343
Unrealized Gains (Losses) on Cash Flow Hedges [Member]                
Accumulated Other Comprehensive Income (Loss) [Line Items]                
Beginning Balance 1,013   $ 703 2,012   $ 1,595 703 1,595
Other comprehensive income (loss), before reclassifications 521     (345)     1,173 1,324
Amount reclassified from AOCI, net of taxes (130)     (557)     (472) (1,809)
Other comprehensive income (loss) 391     (902)     701 (485)
Ending Balance $ 1,404 $ 1,013   $ 1,110 $ 2,012   $ 1,404 $ 1,110