Quarterly Financial Data (Unaudited) - Summary of Quarterly Operating Data (Details) - USD ($) $ / shares in Units, $ 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
Quarterly Financial Data (Unaudited)
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
Provision for credit losses	240	1,552		(305)	(2,615)	(409)	1,000	1,000	1,868	2,850	388	896	1,487	(1,024)	6,002
Noninterest income	6,499	4,904	5,285	4,515	4,857	4,524	5,720	4,941	4,358	3,229	3,674	3,489	21,203	20,042	14,750
Noninterest expense	17,331	16,757	15,070	14,221	14,201	13,528	13,046	13,272	15,509	13,569	13,025	12,349	63,379	54,047	54,452
Income before income taxes					17,217	14,554	15,201	12,733
INCOME BEFORE INCOME TAXES	16,686	11,709	15,273	16,236					8,762	6,228	9,638	9,804	59,904	59,705	34,432
Income tax expense	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
Basic earnings per share	$ 1.41	$ 1.03	$ 1.35	$ 1.43	$ 1.53	$ 1.27	$ 1.33	$ 1.09	$ 0.76	$ 0.55	$ 0.84	$ 0.85	$ 5.22	$ 5.22	$ 3.00
Diluted earnings per share	$ 1.41	$ 1.03	$ 1.34	$ 1.43	$ 1.53	$ 1.27	$ 1.32	$ 1.09	$ 0.76	$ 0.55	$ 0.84	$ 0.85	$ 5.21	$ 5.22	$ 2.99