Securities, Securities in Continuous Unrealized Loss Position (Details) $ in Thousands	3 Months Ended
	Sep. 30, 2024 USD ($) Security	Sep. 30, 2023 USD ($)	Jun. 30, 2024 USD ($) Security
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 24,679		$ 26,487
More than 12 months, fair value	143,022		139,017
Total, fair value	167,701		165,504
Less than 12 months, unrealized losses	187		223
More than 12 months, unrealized losses	20,495		26,865
Total, unrealized losses	$ 20,682		$ 27,088
Less than 12 months, number of securities | Security	1		3
More than 12 months, number of securities | Security	80		84
Total, number of securities | Security	81		87
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 8,155		$ 32,215
More than 12 months, fair value	457,675		476,309
Total, fair value	465,830		508,524
Less than 12 months, unrealized losses	22		474
More than 12 months, unrealized losses	47,745		64,726
Total, unrealized losses	$ 47,767		$ 65,200
Less than 12 months, number of securities | Security	15		294
More than 12 months, number of securities | Security	1,806		2,148
Total, number of securities | Security	1,821		2,442
Total Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 32,834		$ 58,702
More than 12 months, fair value	600,697		615,326
Total, fair value	633,531		674,028
Less than 12 months, unrealized losses	209		697
More than 12 months, unrealized losses	68,240		91,591
Total, unrealized losses	$ 68,449		$ 92,288
Less than 12 months, number of securities | Security	16		297
More than 12 months, number of securities | Security	1,886		2,232
Total, number of securities | Security	1,902		2,529
Available for sale securities transferred at fair value to held to maturity	$ 0	$ 0
Proceeds from sale of available-for-sale securities	0	0
Gross realized gains (losses) on sale of available-for-sale securities	0	$ 0
U.S. Treasury Securities [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	24,679		$ 24,574
More than 12 months, fair value	16,892		16,621
Total, fair value	41,571		41,195
Less than 12 months, unrealized losses	187		215
More than 12 months, unrealized losses	1,077		1,614
Total, unrealized losses	$ 1,264		$ 1,829
Less than 12 months, number of securities | Security	1		1
More than 12 months, number of securities | Security	7		8
Total, number of securities | Security	8		9
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 0		$ 0
More than 12 months, fair value	22,657		22,036
Total, fair value	22,657		22,036
Less than 12 months, unrealized losses	0		0
More than 12 months, unrealized losses	1,146		1,749
Total, unrealized losses	$ 1,146		$ 1,749
Less than 12 months, number of securities | Security	0		0
More than 12 months, number of securities | Security	6		7
Total, number of securities | Security	6		7
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	11,496		10,974
Total, fair value	11,496		10,974
Less than 12 months, unrealized losses	0		0
More than 12 months, unrealized losses	1,543		2,068
Total, unrealized losses	$ 1,543		$ 2,068
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	63		62
Total, fair value	63		62
Less than 12 months, unrealized losses	0		0
More than 12 months, unrealized losses	0		1
Total, unrealized losses	$ 0		$ 1
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	$ 880		$ 32,215
More than 12 months, fair value	254,810		278,521
Total, fair value	255,690		310,736
Less than 12 months, unrealized losses	2		474
More than 12 months, unrealized losses	29,375		39,761
Total, unrealized losses	$ 29,377		$ 40,235
Less than 12 months, number of securities | Security	12		294
More than 12 months, number of securities | Security	1,680		2,025
Total, number of securities | Security	1,692		2,319
Mortgage-backed Securities-Residential [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 0		$ 1,913
More than 12 months, fair value	22,911		22,700
Total, fair value	22,911		24,613
Less than 12 months, unrealized losses	0		8
More than 12 months, unrealized losses	2,913		3,886
Total, unrealized losses	$ 2,913		$ 3,894
Less than 12 months, number of securities | Security	0		2
More than 12 months, number of securities | Security	22		23
Total, number of securities | Security	22		25
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 6,784		$ 0
More than 12 months, fair value	29,561		29,510
Total, fair value	36,345		29,510
Less than 12 months, unrealized losses	10		0
More than 12 months, unrealized losses	2,186		3,314
Total, unrealized losses	$ 2,196		$ 3,314
Less than 12 months, number of securities | Security	2		0
More than 12 months, number of securities | Security	27		28
Total, number of securities | Security	29		28
Mortgage-backed Securities-Multi-family [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 0		$ 0
More than 12 months, fair value	74,975		72,300
Total, fair value	74,975		72,300
Less than 12 months, unrealized losses	0		0
More than 12 months, unrealized losses	14,193		17,961
Total, unrealized losses	$ 14,193		$ 17,961
Less than 12 months, number of securities | Security	0		0
More than 12 months, number of securities | Security	30		31
Total, number of securities | Security	30		31
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 0		$ 0
More than 12 months, fair value	130,173		125,966
Total, fair value	130,173		125,966
Less than 12 months, unrealized losses	0		0
More than 12 months, unrealized losses	12,694		17,397
Total, unrealized losses	$ 12,694		$ 17,397
Less than 12 months, number of securities | Security	0		0
More than 12 months, number of securities | Security	42		47
Total, number of securities | Security	42		47
Corporate Debt Securities [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 0		$ 0
More than 12 months, fair value	16,685		16,360
Total, fair value	16,685		16,360
Less than 12 months, unrealized losses	0		0
More than 12 months, unrealized losses	769		1,335
Total, unrealized losses	$ 769		$ 1,335
Less than 12 months, number of securities | Security	0		0
More than 12 months, number of securities | Security	15		16
Total, number of securities | Security	15		16
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 491		$ 0
More than 12 months, fair value	20,474		20,276
Total, fair value	20,965		20,276
Less than 12 months, unrealized losses	10		0
More than 12 months, unrealized losses	2,344		2,505
Total, unrealized losses	$ 2,354		$ 2,505
Less than 12 months, number of securities | Security	1		0
More than 12 months, number of securities | Security	51		41
Total, number of securities | Security	52		41