Securities, Securities in Continuous Unrealized Loss Position (Details) $ in Thousands	12 Months Ended
	Jun. 30, 2024 USD ($) Security	Jun. 30, 2023 USD ($) Security
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 26,487	$ 6,268
More than 12 months, fair value	139,017	136,936
Total, fair value	165,504	143,204
Less than 12 months, unrealized losses	223	308
More than 12 months, unrealized losses	26,865	28,382
Total, unrealized losses	$ 27,088	$ 28,690
Less than 12 months, number of securities | Security	3	12
More than 12 months, number of securities | Security	84	78
Total, number of securities | Security	87	90
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 32,215	$ 57,992
More than 12 months, fair value	476,309	495,655
Total, fair value	508,524	553,647
Less than 12 months, unrealized losses	474	2,897
More than 12 months, unrealized losses	64,726	57,578
Total, unrealized losses	$ 65,200	$ 60,475
Less than 12 months, number of securities | Security	294	471
More than 12 months, number of securities | Security	2,148	2,108
Total, number of securities | Security	2,442	2,579
Total Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 58,702	$ 64,260
More than 12 months, fair value	615,326	632,591
Total, fair value	674,028	696,851
Less than 12 months, unrealized losses	697	3,205
More than 12 months, unrealized losses	91,591	85,960
Total, unrealized losses	$ 92,288	$ 89,165
Less than 12 months, number of securities | Security	297	483
More than 12 months, number of securities | Security	2,232	2,186
Total, number of securities | Security	2,529	2,669
Available for sale securities transferred at fair value to held to maturity	$ 0	$ 0
Proceeds from sale of available-for-sale securities	0	1,675
Gross realized gains (losses) on sale of available-for-sale securities	0	$ (251)
Number of available-for-sale securities sold | Security		1
U.S. Treasury Securities [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	24,574	$ 761
More than 12 months, fair value	16,621	15,739
Total, fair value	41,195	16,500
Less than 12 months, unrealized losses	215	57
More than 12 months, unrealized losses	1,614	1,792
Total, unrealized losses	$ 1,829	$ 1,849
Less than 12 months, number of securities | Security	1	2
More than 12 months, number of securities | Security	8	6
Total, number of securities | Security	9	8
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 0	$ 0
More than 12 months, fair value	22,036	31,267
Total, fair value	22,036	31,267
Less than 12 months, unrealized losses	0	0
More than 12 months, unrealized losses	1,749	2,438
Total, unrealized losses	$ 1,749	$ 2,438
Less than 12 months, number of securities | Security	0	0
More than 12 months, number of securities | Security	7	8
Total, number of securities | Security	7	8
U.S. Government Sponsored Enterprises [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 0	$ 0
More than 12 months, fair value	10,974	10,823
Total, fair value	10,974	10,823
Less than 12 months, unrealized losses	0	0
More than 12 months, unrealized losses	2,068	2,231
Total, unrealized losses	$ 2,068	$ 2,231
Less than 12 months, number of securities | Security	0	0
More than 12 months, number of securities | Security	5	5
Total, number of securities | Security	5	5
State and Political Subdivisions [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 0	$ 0
More than 12 months, fair value	62	82
Total, fair value	62	82
Less than 12 months, unrealized losses	0	0
More than 12 months, unrealized losses	1	2
Total, unrealized losses	$ 1	$ 2
Less than 12 months, number of securities | Security	0	0
More than 12 months, number of securities | Security	1	1
Total, number of securities | Security	1	1
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 32,215	$ 40,412
More than 12 months, fair value	278,521	295,479
Total, fair value	310,736	335,891
Less than 12 months, unrealized losses	474	520
More than 12 months, unrealized losses	39,761	30,142
Total, unrealized losses	$ 40,235	$ 30,662
Less than 12 months, number of securities | Security	294	448
More than 12 months, number of securities | Security	2,025	2,018
Total, number of securities | Security	2,319	2,466
Mortgage-backed Securities-Residential [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 1,913	$ 476
More than 12 months, fair value	22,700	25,125
Total, fair value	24,613	25,601
Less than 12 months, unrealized losses	8	29
More than 12 months, unrealized losses	3,886	3,956
Total, unrealized losses	$ 3,894	$ 3,985
Less than 12 months, number of securities | Security	2	7
More than 12 months, number of securities | Security	23	21
Total, number of securities | Security	25	28
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 0	$ 1,982
More than 12 months, fair value	29,510	31,579
Total, fair value	29,510	33,561
Less than 12 months, unrealized losses	0	120
More than 12 months, unrealized losses	3,314	3,505
Total, unrealized losses	$ 3,314	$ 3,625
Less than 12 months, number of securities | Security	0	12
More than 12 months, number of securities | Security	28	18
Total, number of securities | Security	28	30
Mortgage-backed Securities-Multi-family [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 0	$ 2,679
More than 12 months, fair value	72,300	69,407
Total, fair value	72,300	72,086
Less than 12 months, unrealized losses	0	182
More than 12 months, unrealized losses	17,961	18,748
Total, unrealized losses	$ 17,961	$ 18,930
Less than 12 months, number of securities | Security	0	1
More than 12 months, number of securities | Security	31	30
Total, number of securities | Security	31	31
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 0	$ 5,362
More than 12 months, fair value	125,966	129,360
Total, fair value	125,966	134,722
Less than 12 months, unrealized losses	0	245
More than 12 months, unrealized losses	17,397	20,079
Total, unrealized losses	$ 17,397	$ 20,324
Less than 12 months, number of securities | Security	0	2
More than 12 months, number of securities | Security	47	54
Total, number of securities | Security	47	56
Corporate Debt Securities [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 0	$ 2,352
More than 12 months, fair value	16,360	15,760
Total, fair value	16,360	18,112
Less than 12 months, unrealized losses	0	40
More than 12 months, unrealized losses	1,335	1,653
Total, unrealized losses	$ 1,335	$ 1,693
Less than 12 months, number of securities | Security	0	2
More than 12 months, number of securities | Security	16	15
Total, number of securities | Security	16	17
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 0	$ 10,236
More than 12 months, fair value	20,276	7,970
Total, fair value	20,276	18,206
Less than 12 months, unrealized losses	0	2,012
More than 12 months, unrealized losses	2,505	1,414
Total, unrealized losses	$ 2,505	$ 3,426
Less than 12 months, number of securities | Security	0	9
More than 12 months, number of securities | Security	41	10
Total, number of securities | Security	41	19