INVESTMENT SECURITIES - Contractual Maturity (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Jun. 30, 2021
Securities available for sale, amortized cost
Due in one year or less	$ 183,663
Due after one to five years	312,525
Other debt securities	320
Total Amortized Cost	496,508	$ 264,379
Securities available for sale, estimated fair value
Due in one year or less	182,737
Due after one to five years	298,462
Without single maturity date	591
Estimated Fair Value	481,790	264,602
Securities held to maturity, amortized cost
Due in one year or less	2,032
Due after one to five years	1,920
Due after five to ten years	20,000
Amortized cost	23,952	10,878
Securities held to maturity, estimated fair value
Due in one year or less	1,896
Due after one to five years	1,920
Due after five to ten years	18,651
Estimated fair value	$ 22,467	$ 10,919