Securities, Securities in Continuous Unrealized Loss Position (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2022 USD ($) Security	Mar. 31, 2021 USD ($)	Mar. 31, 2022 USD ($) Security	Mar. 31, 2021 USD ($)	Jun. 30, 2021 USD ($) Security
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 230,576		$ 230,576		$ 87,974
More than 12 months, fair value	10,558		10,558		2,469
Total, fair value	241,134		241,134		90,443
Less than 12 months, unrealized losses	15,036		15,036		1,343
More than 12 months, unrealized losses	1,773		1,773		61
Total, unrealized losses	$ 16,809		$ 16,809		$ 1,404
Less than 12 months, number of securities | Security	141		141		29
More than 12 months, number of securities | Security	4		4		1
Total, number of securities | Security	145		145		30
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 335,937		$ 335,937		$ 63,977
More than 12 months, fair value	784		784		471
Total, fair value	336,721		336,721		64,448
Less than 12 months, unrealized losses	28,354		28,354		443
More than 12 months, unrealized losses	135		135		29
Total, unrealized losses	$ 28,489		$ 28,489		$ 472
Less than 12 months, number of securities | Security	982		982		84
More than 12 months, number of securities | Security	5		5		1
Total, number of securities | Security	987		987		85
Total Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 566,513		$ 566,513		$ 151,951
More than 12 months, fair value	11,342		11,342		2,940
Total, fair value	577,855		577,855		154,891
Less than 12 months, unrealized losses	43,390		43,390		1,786
More than 12 months, unrealized losses	1,908		1,908		90
Total, unrealized losses	$ 45,298		$ 45,298		$ 1,876
Less than 12 months, number of securities | Security	1,123		1,123		113
More than 12 months, number of securities | Security	9		9		2
Total, number of securities | Security	1,132		1,132		115
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	0	0
Gross realized gains (losses) on sale of available-for-sale securities	0	0	0	0
Other-than-temporary impairment losses	0	$ 0	0	$ 0
U.S. Government Sponsored Enterprises [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	11,937		11,937		$ 6,787
More than 12 months, fair value	0		0		0
Total, fair value	11,937		11,937		6,787
Less than 12 months, unrealized losses	1,133		1,133		212
More than 12 months, unrealized losses	0		0		0
Total, unrealized losses	$ 1,133		$ 1,133		$ 212
Less than 12 months, number of securities | Security	4		4		2
More than 12 months, number of securities | Security	0		0		0
Total, number of securities | Security	4		4		2
U.S. Treasury Securities [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 18,982		$ 18,982		$ 1,970
More than 12 months, fair value	0		0		0
Total, fair value	18,982		18,982		1,970
Less than 12 months, unrealized losses	1,205		1,205		1
More than 12 months, unrealized losses	0		0		0
Total, unrealized losses	$ 1,205		$ 1,205		$ 1
Less than 12 months, number of securities | Security	8		8		1
More than 12 months, number of securities | Security	0		0		0
Total, number of securities | Security	8		8		1
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 27,627		$ 27,627		$ 1,991
More than 12 months, fair value	0		0		0
Total, fair value	27,627		27,627		1,991
Less than 12 months, unrealized losses	994		994		2
More than 12 months, unrealized losses	0		0		0
Total, unrealized losses	$ 994		$ 994		$ 2
Less than 12 months, number of securities | Security	8		8		1
More than 12 months, number of securities | Security	0		0		0
Total, number of securities | Security	8		8		1
State and Political Subdivisions [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 75,135		$ 75,135
More than 12 months, fair value	0		0
Total, fair value	75,135		75,135
Less than 12 months, unrealized losses	158		158
More than 12 months, unrealized losses	0		0
Total, unrealized losses	$ 158		$ 158
Less than 12 months, number of securities | Security	70		70
More than 12 months, number of securities | Security	0		0
Total, number of securities | Security	70		70
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 151,743		$ 151,743		$ 42,751
More than 12 months, fair value	784		784		0
Total, fair value	152,527		152,527		42,751
Less than 12 months, unrealized losses	17,245		17,245		303
More than 12 months, unrealized losses	135		135		0
Total, unrealized losses	$ 17,380		$ 17,380		$ 303
Less than 12 months, number of securities | Security	900		900		76
More than 12 months, number of securities | Security	5		5		0
Total, number of securities | Security	905		905		76
Mortgage-backed Securities-Residential [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 31,687		$ 31,687		$ 19,071
More than 12 months, fair value	0		0		0
Total, fair value	31,687		31,687		19,071
Less than 12 months, unrealized losses	2,132		2,132		167
More than 12 months, unrealized losses	0		0		0
Total, unrealized losses	$ 2,132		$ 2,132		$ 167
Less than 12 months, number of securities | Security	17		17		4
More than 12 months, number of securities | Security	0		0		0
Total, number of securities | Security	17		17		4
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 20,122		$ 20,122		$ 12,839
More than 12 months, fair value	0		0		0
Total, fair value	20,122		20,122		12,839
Less than 12 months, unrealized losses	1,131		1,131		90
More than 12 months, unrealized losses	0		0		0
Total, unrealized losses	$ 1,131		$ 1,131		$ 90
Less than 12 months, number of securities | Security	13		13		2
More than 12 months, number of securities | Security	0		0		0
Total, number of securities | Security	13		13		2
Mortgage-backed Securities-Multi-family [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 76,914		$ 76,914		$ 59,176
More than 12 months, fair value	10,558		10,558		2,469
Total, fair value	87,472		87,472		61,645
Less than 12 months, unrealized losses	9,958		9,958		933
More than 12 months, unrealized losses	1,773		1,773		61
Total, unrealized losses	$ 11,731		$ 11,731		$ 994
Less than 12 months, number of securities | Security	29		29		21
More than 12 months, number of securities | Security	4		4		1
Total, number of securities | Security	33		33		22
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 128,056		$ 128,056		$ 3,890
More than 12 months, fair value	0		0		0
Total, fair value	128,056		128,056		3,890
Less than 12 months, unrealized losses	8,567		8,567		12
More than 12 months, unrealized losses	0		0		0
Total, unrealized losses	$ 8,567		$ 8,567		$ 12
Less than 12 months, number of securities | Security	47		47		3
More than 12 months, number of securities | Security	0		0		0
Total, number of securities | Security	47		47		3
Corporate Debt Securities [Member]
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 15,921		$ 15,921		$ 970
More than 12 months, fair value	0		0		0
Total, fair value	15,921		15,921		970
Less than 12 months, unrealized losses	450		450		30
More than 12 months, unrealized losses	0		0		0
Total, unrealized losses	$ 450		$ 450		$ 30
Less than 12 months, number of securities | Security	13		13		1
More than 12 months, number of securities | Security	0		0		0
Total, number of securities | Security	13		13		1
Held-to-maturity Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, fair value	$ 8,389		$ 8,389		$ 2,506
More than 12 months, fair value	0		0		471
Total, fair value	8,389		8,389		2,977
Less than 12 months, unrealized losses	417		417		36
More than 12 months, unrealized losses	0		0		29
Total, unrealized losses	$ 417		$ 417		$ 65
Less than 12 months, number of securities | Security	14		14		2
More than 12 months, number of securities | Security	0		0		1
Total, number of securities | Security	14		14		3