ALLOWANCE FOR CREDIT LOSSES AND CREDIT QUALITY INFORMATION - Schedule of Performance of Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Jun. 30, 2023
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	$ 133,080	$ 51,129
30-89 Days Past Due and Still Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	1,034	358
90+ Days Past Due and Still Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	339	101
Accruing Current Balances
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	117,599	49,133
Nonaccrual Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	14,108	1,537
Commercial | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	97,725	31,694
Commercial | Commercial and industrial | 30-89 Days Past Due and Still Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	0	0
Commercial | Commercial and industrial | 90+ Days Past Due and Still Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	0	0
Commercial | Commercial and industrial | Accruing Current Balances
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	83,960	30,301
Commercial | Commercial and industrial | Nonaccrual Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	13,765	1,393
Commercial | Owner-occupied commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	493	1,206
Commercial | Owner-occupied commercial | 30-89 Days Past Due and Still Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	0	0
Commercial | Owner-occupied commercial | 90+ Days Past Due and Still Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	0	0
Commercial | Owner-occupied commercial | Accruing Current Balances
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	493	1,062
Commercial | Owner-occupied commercial | Nonaccrual Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	0	144
Commercial | Commercial mortgages
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	15,515	9,468
Commercial | Commercial mortgages | 30-89 Days Past Due and Still Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	0	0
Commercial | Commercial mortgages | 90+ Days Past Due and Still Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	0	0
Commercial | Commercial mortgages | Accruing Current Balances
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	15,432	9,468
Commercial | Commercial mortgages | Nonaccrual Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	83	0
Commercial | Construction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	10,620	3,305
Commercial | Construction | 30-89 Days Past Due and Still Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	0	0
Commercial | Construction | 90+ Days Past Due and Still Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	0	0
Commercial | Construction | Accruing Current Balances
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	10,620	3,305
Commercial | Construction | Nonaccrual Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	0	0
Residential
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	205
Residential | 30-89 Days Past Due and Still Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	0
Residential | 90+ Days Past Due and Still Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	0
Residential | Accruing Current Balances
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	40
Residential | Nonaccrual Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	165
Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	8,522	5,456
Consumer | 30-89 Days Past Due and Still Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	1,034	358
Consumer | 90+ Days Past Due and Still Accruing
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	339	101
Consumer | Accruing Current Balances
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	7,054	4,997
Consumer | Nonaccrual Loans
Financing Receivable, Troubled Debt Restructuring [Line Items]
Total	$ 95	$ 0