Quarterly Financial Data (Unaudited) - Summary of Quarterly Operating Data (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended												12 Months Ended
	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2023
Quarterly Financial Data (Unaudited)
Interest income	$ 70,638	$ 69,925	$ 69,424	$ 67,378	$ 64,667	$ 64,025	$ 61,576	$ 58,107	$ 54,283	$ 48,286	$ 38,851	$ 34,996	$ 277,365	$ 248,375	$ 176,416
Interest expense	30,305	30,446	31,281	30,717	29,572	29,516	27,090	22,714	18,065	14,519	10,600	6,487	122,749	108,892	49,671
Net interest income	40,333	39,479	38,143	36,661	35,095	34,509	34,486	35,393	36,218	33,767	28,251	28,509	154,616	139,483	126,745
Provision for credit losses	2,500	932	932	2,159	900	900	900	900	795	10,072	1,138	5,056	6,523	3,600	17,061
Noninterest income	7,280	6,666	6,865	7,173	7,767	5,584	5,640	5,853	8,951	6,284	5,456	5,513	27,984	24,844	26,204
Noninterest expense	25,976	25,391	24,876	25,840	25,002	25,049	23,860	23,706	24,875	26,992	17,638	16,920	102,083	97,617	86,425
Income Before Income Taxes	19,137	19,822	19,200	15,835	16,960	14,144	15,366	16,640	19,499	2,987	14,931	12,046
Income tax expense	3,351	4,139	4,547	3,379	3,430	2,837	3,173	3,488	3,939	578	3,267	2,442	15,416	12,928	10,226
Net Income (Loss)	$ 15,786	$ 15,683	$ 14,653	$ 12,456	$ 13,530	$ 11,307	$ 12,193	$ 13,152	$ 15,560	$ 2,409	$ 11,664	$ 9,604	$ 58,578	$ 50,182	$ 39,237
Basic earnings per share	$ 1.4	$ 1.39	$ 1.3	$ 1.1	$ 1.19	$ 1	$ 1.08	$ 1.16	$ 1.37	$ 0.22	$ 1.26	$ 1.04	$ 5.19	$ 4.42	$ 3.86
Diluted earnings per share	$ 1.39	$ 1.39	$ 1.3	$ 1.1	$ 1.19	$ 0.99	$ 1.07	$ 1.16	$ 1.37	$ 0.22	$ 1.26	$ 1.04	$ 5.18	$ 4.42	$ 3.85