Securities - Securities in Continuous Unrealized Loss Position (Details) $ in Thousands	Dec. 31, 2024 USD ($) Security	Jun. 30, 2024 USD ($) Security
Securities available-for-sale:
Less than 12 months, fair value	$ 4,921	$ 26,487
Less than 12 months, unrealized losses	$ 25	$ 223
Less than 12 months, number of securities (in Security) | Security	3	3
More than 12 months, fair value	$ 137,762	$ 139,017
More than 12 months, unrealized losses	$ 24,962	$ 26,865
More than 12 months, number of securities (in Security) | Security	80	84
Total, fair value	$ 142,683	$ 165,504
Total, unrealized losses	$ 24,987	$ 27,088
Total, number of securities (in Security) | Security	83	87
Securities held-to-maturity:
Less than 12 months, fair value	$ 126,241	$ 32,215
Less than 12 months, unrealized losses	$ 1,955	$ 474
Less than 12 months, number of securities (in Security) | Security	427	294
More than 12 months, fair value	$ 441,458	$ 476,309
More than 12 months, unrealized losses	$ 56,446	$ 64,726
More than 12 months, number of securities (in Security) | Security	1,772	2,148
Total, fair value	$ 567,699	$ 508,524
Total, unrealized losses	$ 58,401	$ 65,200
Total, number of securities (in Security) | Security	2,199	2,442
Less than 12 months, fair value	$ 131,162	$ 58,702
Less than 12 months, unrealized losses	$ 1,980	$ 697
Less than 12 months, number of securities (in Security) | Security	430	297
More than 12 months, fair value	$ 579,220	$ 615,326
More than 12 months, unrealized losses	$ 81,408	$ 91,591
More than 12 months, number of securities (in Security) | Security	1,852	2,232
Total, fair value	$ 710,382	$ 674,028
Total, unrealized losses	$ 83,388	$ 92,288
Total, number of securities (in Security) | Security	2,282	2,529
U.S. Treasury Securities [Member]
Securities available-for-sale:
Less than 12 months, fair value	$ 236	$ 24,574
Less than 12 months, unrealized losses	$ 2	$ 215
Less than 12 months, number of securities (in Security) | Security	1	1
More than 12 months, fair value	$ 16,691	$ 16,621
More than 12 months, unrealized losses	$ 1,248	$ 1,614
More than 12 months, number of securities (in Security) | Security	7	8
Total, fair value	$ 16,927	$ 41,195
Total, unrealized losses	$ 1,250	$ 1,829
Total, number of securities (in Security) | Security	8	9
Securities held-to-maturity:
Less than 12 months, fair value	$ 0	$ 0
Less than 12 months, unrealized losses	$ 0	$ 0
Less than 12 months, number of securities (in Security) | Security	0	0
More than 12 months, fair value	$ 22,485	$ 22,036
More than 12 months, unrealized losses	$ 1,335	$ 1,749
More than 12 months, number of securities (in Security) | Security	7	7
Total, fair value	$ 22,485	$ 22,036
Total, unrealized losses	$ 1,335	$ 1,749
Total, number of securities (in Security) | Security	7	7
U.S. Government Sponsored Enterprises [Member]
Securities available-for-sale:
Less than 12 months, fair value	$ 0	$ 0
Less than 12 months, unrealized losses	$ 0	$ 0
Less than 12 months, number of securities (in Security) | Security	0	0
More than 12 months, fair value	$ 11,190	$ 10,974
More than 12 months, unrealized losses	$ 1,846	$ 2,068
More than 12 months, number of securities (in Security) | Security	5	5
Total, fair value	$ 11,190	$ 10,974
Total, unrealized losses	$ 1,846	$ 2,068
Total, number of securities (in Security) | Security	5	5
State and Political Subdivisions [Member]
Securities available-for-sale:
Less than 12 months, fair value	$ 0	$ 0
Less than 12 months, unrealized losses	$ 0	$ 0
Less than 12 months, number of securities (in Security) | Security	0	0
More than 12 months, fair value	$ 63	$ 62
More than 12 months, unrealized losses	$ 1	$ 1
More than 12 months, number of securities (in Security) | Security	1	1
Total, fair value	$ 63	$ 62
Total, unrealized losses	$ 1	$ 1
Total, number of securities (in Security) | Security	1	1
Securities held-to-maturity:
Less than 12 months, fair value	$ 48,382	$ 32,215
Less than 12 months, unrealized losses	$ 777	$ 474
Less than 12 months, number of securities (in Security) | Security	415	294
More than 12 months, fair value	$ 245,698	$ 278,521
More than 12 months, unrealized losses	$ 34,490	$ 39,761
More than 12 months, number of securities (in Security) | Security	1,671	2,025
Total, fair value	$ 294,080	$ 310,736
Total, unrealized losses	$ 35,267	$ 40,235
Total, number of securities (in Security) | Security	2,086	2,319
Mortgage-backed Securities-Residential [Member]
Securities available-for-sale:
Less than 12 months, fair value	$ 4,685	$ 1,913
Less than 12 months, unrealized losses	$ 23	$ 8
Less than 12 months, number of securities (in Security) | Security	2	2
More than 12 months, fair value	$ 21,360	$ 22,700
More than 12 months, unrealized losses	$ 3,792	$ 3,886
More than 12 months, number of securities (in Security) | Security	23	23
Total, fair value	$ 26,045	$ 24,613
Total, unrealized losses	$ 3,815	$ 3,894
Total, number of securities (in Security) | Security	25	25
Securities held-to-maturity:
Less than 12 months, fair value	$ 77,859	$ 0
Less than 12 months, unrealized losses	$ 1,178	$ 0
Less than 12 months, number of securities (in Security) | Security	12	0
More than 12 months, fair value	$ 27,747	$ 29,510
More than 12 months, unrealized losses	$ 2,987	$ 3,314
More than 12 months, number of securities (in Security) | Security	27	28
Total, fair value	$ 105,606	$ 29,510
Total, unrealized losses	$ 4,165	$ 3,314
Total, number of securities (in Security) | Security	39	28
Mortgage-backed Securities-Multi-family [Member]
Securities available-for-sale:
Less than 12 months, fair value	$ 0	$ 0
Less than 12 months, unrealized losses	$ 0	$ 0
Less than 12 months, number of securities (in Security) | Security	0	0
More than 12 months, fair value	$ 71,955	$ 72,300
More than 12 months, unrealized losses	$ 17,116	$ 17,961
More than 12 months, number of securities (in Security) | Security	30	31
Total, fair value	$ 71,955	$ 72,300
Total, unrealized losses	$ 17,116	$ 17,961
Total, number of securities (in Security) | Security	30	31
Securities held-to-maturity:
Less than 12 months, fair value	$ 0	$ 0
Less than 12 months, unrealized losses	$ 0	$ 0
Less than 12 months, number of securities (in Security) | Security	0	0
More than 12 months, fair value	$ 124,529	$ 125,966
More than 12 months, unrealized losses	$ 15,777	$ 17,397
More than 12 months, number of securities (in Security) | Security	49	47
Total, fair value	$ 124,529	$ 125,966
Total, unrealized losses	$ 15,777	$ 17,397
Total, number of securities (in Security) | Security	49	47
Corporate Debt Securities [Member]
Securities available-for-sale:
Less than 12 months, fair value	$ 0	$ 0
Less than 12 months, unrealized losses	$ 0	$ 0
Less than 12 months, number of securities (in Security) | Security	0	0
More than 12 months, fair value	$ 16,503	$ 16,360
More than 12 months, unrealized losses	$ 959	$ 1,335
More than 12 months, number of securities (in Security) | Security	14	16
Total, fair value	$ 16,503	$ 16,360
Total, unrealized losses	$ 959	$ 1,335
Total, number of securities (in Security) | Security	14	16
Securities held-to-maturity:
Less than 12 months, fair value	$ 0	$ 0
Less than 12 months, unrealized losses	$ 0	$ 0
Less than 12 months, number of securities (in Security) | Security	0	0
More than 12 months, fair value	$ 20,999	$ 20,276
More than 12 months, unrealized losses	$ 1,857	$ 2,505
More than 12 months, number of securities (in Security) | Security	18	41
Total, fair value	$ 20,999	$ 20,276
Total, unrealized losses	$ 1,857	$ 2,505
Total, number of securities (in Security) | Security	18	41