Securities, Securities in Continuous Unrealized Loss Position (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2023 USD ($) Security	Dec. 31, 2022 USD ($) Security	Dec. 31, 2023 USD ($) Security	Dec. 31, 2022 USD ($) Security	Jun. 30, 2023 USD ($) Security
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 778		$ 778		$ 6,268
More than 12 months, fair value	141,331		141,331		136,936
Total, fair value	142,109		142,109		143,204
Less than 12 months, unrealized losses	41		41		308
More than 12 months, unrealized losses	25,927		25,927		28,382
Total, unrealized losses	$ 25,968		$ 25,968		$ 28,690
Less than 12 months, number of securities | Security	2		2		12
More than 12 months, number of securities | Security	85		85		78
Total, number of securities | Security	87		87		90
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 14,946		$ 14,946		$ 57,992
More than 12 months, fair value	507,720		507,720		495,655
Total, fair value	522,666		522,666		553,647
Less than 12 months, unrealized losses	591		591		2,897
More than 12 months, unrealized losses	55,782		55,782		57,578
Total, unrealized losses	$ 56,373		$ 56,373		$ 60,475
Less than 12 months, number of securities | Security	136		136		471
More than 12 months, number of securities | Security	2,252		2,252		2,108
Total, number of securities | Security	2,388		2,388		2,579
Total Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 15,724		$ 15,724		$ 64,260
More than 12 months, fair value	649,051		649,051		632,591
Total, fair value	664,775		664,775		696,851
Less than 12 months, unrealized losses	632		632		3,205
More than 12 months, unrealized losses	81,709		81,709		85,960
Total, unrealized losses	$ 82,341		$ 82,341		$ 89,165
Less than 12 months, number of securities | Security	138		138		483
More than 12 months, number of securities | Security	2,337		2,337		2,186
Total, number of securities | Security	2,475		2,475		2,669
Available for sale securities transferred at fair value to held to maturity	$ 0	$ 0	$ 0	$ 0
Proceeds from sale of available-for-sale securities	0		0	1,675
Gross realized gains (losses) on sale of available-for-sale securities	0	$ (251)	0	$ (251)
Number of sales of available-for-sale security | Security		1		1
U.S. Government Sponsored Enterprises [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	0		0		$ 0
More than 12 months, fair value	11,059		11,059		10,823
Total, fair value	11,059		11,059		10,823
Less than 12 months, unrealized losses	0		0		0
More than 12 months, unrealized losses	1,989		1,989		2,231
Total, unrealized losses	$ 1,989		$ 1,989		$ 2,231
Less than 12 months, number of securities | Security	0		0		0
More than 12 months, number of securities | Security	5		5		5
Total, number of securities | Security	5		5		5
U.S. Treasury Securities [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 778		$ 778		$ 761
More than 12 months, fair value	15,939		15,939		15,739
Total, fair value	16,717		16,717		16,500
Less than 12 months, unrealized losses	41		41		57
More than 12 months, unrealized losses	1,534		1,534		1,792
Total, unrealized losses	$ 1,575		$ 1,575		$ 1,849
Less than 12 months, number of securities | Security	2		2		2
More than 12 months, number of securities | Security	6		6		6
Total, number of securities | Security	8		8		8
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 0		$ 0		$ 0
More than 12 months, fair value	31,939		31,939		31,267
Total, fair value	31,939		31,939		31,267
Less than 12 months, unrealized losses	0		0		0
More than 12 months, unrealized losses	1,808		1,808		2,438
Total, unrealized losses	$ 1,808		$ 1,808		$ 2,438
Less than 12 months, number of securities | Security	0		0		0
More than 12 months, number of securities | Security	8		8		8
Total, number of securities | Security	8		8		8
State and Political Subdivisions [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 0		$ 0		$ 0
More than 12 months, fair value	83		83		82
Total, fair value	83		83		82
Less than 12 months, unrealized losses	0		0		0
More than 12 months, unrealized losses	1		1		2
Total, unrealized losses	$ 1		$ 1		$ 2
Less than 12 months, number of securities | Security	0		0		0
More than 12 months, number of securities | Security	1		1		1
Total, number of securities | Security	1		1		1
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 11,853		$ 11,853		$ 40,412
More than 12 months, fair value	298,626		298,626		295,479
Total, fair value	310,479		310,479		335,891
Less than 12 months, unrealized losses	182		182		520
More than 12 months, unrealized losses	31,472		31,472		30,142
Total, unrealized losses	$ 31,654		$ 31,654		$ 30,662
Less than 12 months, number of securities | Security	131		131		448
More than 12 months, number of securities | Security	2,149		2,149		2,018
Total, number of securities | Security	2,280		2,280		2,466
Mortgage-backed Securities-Residential [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 0		$ 0		$ 476
More than 12 months, fair value	24,379		24,379		25,125
Total, fair value	24,379		24,379		25,601
Less than 12 months, unrealized losses	0		0		29
More than 12 months, unrealized losses	3,540		3,540		3,956
Total, unrealized losses	$ 3,540		$ 3,540		$ 3,985
Less than 12 months, number of securities | Security	0		0		7
More than 12 months, number of securities | Security	26		26		21
Total, number of securities | Security	26		26		28
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 3		$ 3		$ 1,982
More than 12 months, fair value	31,940		31,940		31,579
Total, fair value	31,943		31,943		33,561
Less than 12 months, unrealized losses	0		0		120
More than 12 months, unrealized losses	2,969		2,969		3,505
Total, unrealized losses	$ 2,969		$ 2,969		$ 3,625
Less than 12 months, number of securities | Security	2		2		12
More than 12 months, number of securities | Security	27		27		18
Total, number of securities | Security	29		29		30
Mortgage-backed Securities-Multi-family [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 0		$ 0		$ 2,679
More than 12 months, fair value	73,248		73,248		69,407
Total, fair value	73,248		73,248		72,086
Less than 12 months, unrealized losses	0		0		182
More than 12 months, unrealized losses	17,557		17,557		18,748
Total, unrealized losses	$ 17,557		$ 17,557		$ 18,930
Less than 12 months, number of securities | Security	0		0		1
More than 12 months, number of securities | Security	31		31		30
Total, number of securities | Security	31		31		31
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 0		$ 0		$ 5,362
More than 12 months, fair value	128,633		128,633		129,360
Total, fair value	128,633		128,633		134,722
Less than 12 months, unrealized losses	0		0		245
More than 12 months, unrealized losses	17,282		17,282		20,079
Total, unrealized losses	$ 17,282		$ 17,282		$ 20,324
Less than 12 months, number of securities | Security	0		0		2
More than 12 months, number of securities | Security	52		52		54
Total, number of securities | Security	52		52		56
Corporate Debt Securities [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 0		$ 0		$ 2,352
More than 12 months, fair value	16,623		16,623		15,760
Total, fair value	16,623		16,623		18,112
Less than 12 months, unrealized losses	0		0		40
More than 12 months, unrealized losses	1,306		1,306		1,653
Total, unrealized losses	$ 1,306		$ 1,306		$ 1,693
Less than 12 months, number of securities | Security	0		0		2
More than 12 months, number of securities | Security	16		16		15
Total, number of securities | Security	16		16		17
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 3,090		$ 3,090		$ 10,236
More than 12 months, fair value	16,582		16,582		7,970
Total, fair value	19,672		19,672		18,206
Less than 12 months, unrealized losses	409		409		2,012
More than 12 months, unrealized losses	2,251		2,251		1,414
Total, unrealized losses	$ 2,660		$ 2,660		$ 3,426
Less than 12 months, number of securities | Security	3		3		9
More than 12 months, number of securities | Security	16		16		10
Total, number of securities | Security	19		19		19