Condensed Parent Company Only Financial Statements - Statements of Income (Details) - USD ($) $ in Thousands	3 Months Ended												12 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020
Interest income	$ 31,572	$ 28,339	$ 28,096	$ 28,860	$ 27,532	$ 27,100	$ 27,871	$ 26,972	$ 27,264	$ 26,220	$ 26,646	$ 26,922	$ 116,867	$ 109,475	$ 107,052
Interest expense	3,814	3,225	3,038	3,223	3,586	3,951	4,344	4,908	5,483	6,802	7,269	7,362	13,300	16,789	26,916
NET INTEREST INCOME	27,758	25,114	25,058	25,637	23,946	23,149	23,527	22,064	21,781	19,418	19,377	19,560	103,567	92,686	80,136
Bargain purchase gain															123
Income tax benefit	(3,602)	(2,358)	(3,288)	(3,487)	(3,529)	(3,096)	(3,153)	(2,747)	(1,861)	(1,129)	(1,921)	(1,976)	(12,735)	(12,525)	(6,887)
NET INCOME	$ 13,084	$ 9,351	$ 11,985	$ 12,749	$ 13,688	$ 11,458	$ 12,048	$ 9,986	$ 6,901	$ 5,099	$ 7,717	$ 7,828	47,169	47,180	27,545
Parent Company
Interest income													14	13	27
Interest expense													686	534	899
NET INTEREST INCOME													(672)	(521)	(872)
Dividends from Bank													31,000	12,000	34,000
Bargain purchase gain															123
Operating expenses													1,124	599	1,529
Income before income taxes and equity in undistributed income of the Bank													29,204	10,880	31,722
Income tax benefit													321	235	292
Income before equity in undistributed income of the Bank													29,525	11,115	32,014
Equity in undistributed income of the Bank													17,644	36,065	(4,469)
NET INCOME													47,169	47,180	27,545
COMPREHENSIVE INCOME													$ 26,800	$ 45,615	$ 30,745