NET LOANS RECEIVABLE - Aging of Recorded Investment (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025
NET LOANS RECEIVABLE
Loans receivable	$ 1,726,970	$ 1,671,560
Past Due
NET LOANS RECEIVABLE
Loans receivable	9,334	12,753
30 to 59 Days Past Due
NET LOANS RECEIVABLE
Loans receivable	4,365	3,269
60 to 89 Days Past Due
NET LOANS RECEIVABLE
Loans receivable	1,403	2,541
90 or more Days Past Due
NET LOANS RECEIVABLE
Loans receivable	3,566	6,943
Loans Not Past Due
NET LOANS RECEIVABLE
Loans receivable	1,717,636	1,658,807
Commercial
NET LOANS RECEIVABLE
Loans receivable	789,541	761,068
Commercial \| Real estate
NET LOANS RECEIVABLE
Loans receivable	457,908	466,449
Commercial \| Real estate \| Past Due
NET LOANS RECEIVABLE
Loans receivable	3,436	6,084
Commercial \| Real estate \| 30 to 59 Days Past Due
NET LOANS RECEIVABLE
Loans receivable	2	1
Commercial \| Real estate \| 60 to 89 Days Past Due
NET LOANS RECEIVABLE
Loans receivable		3
Commercial \| Real estate \| 90 or more Days Past Due
NET LOANS RECEIVABLE
Loans receivable	3,434	6,080
Commercial \| Real estate \| Loans Not Past Due
NET LOANS RECEIVABLE
Loans receivable	454,472	460,365
Commercial \| Commercial and industrial
NET LOANS RECEIVABLE
Loans receivable	130,267	124,895
Commercial \| Commercial and industrial \| Past Due
NET LOANS RECEIVABLE
Loans receivable	689	23
Commercial \| Commercial and industrial \| 30 to 59 Days Past Due
NET LOANS RECEIVABLE
Loans receivable	670	23
Commercial \| Commercial and industrial \| 60 to 89 Days Past Due
NET LOANS RECEIVABLE
Loans receivable	19
Commercial \| Commercial and industrial \| Loans Not Past Due
NET LOANS RECEIVABLE
Loans receivable	129,578	124,872
Commercial \| Construction
NET LOANS RECEIVABLE
Loans receivable	201,366	169,724
Commercial \| Construction \| Past Due
NET LOANS RECEIVABLE
Loans receivable	1,000
Commercial \| Construction \| 30 to 59 Days Past Due
NET LOANS RECEIVABLE
Loans receivable	1,000
Commercial \| Construction \| Loans Not Past Due
NET LOANS RECEIVABLE
Loans receivable	200,366	169,724
Residential mortgages
NET LOANS RECEIVABLE
Loans receivable	820,775	793,657
Residential mortgages \| Past Due
NET LOANS RECEIVABLE
Loans receivable	2,975	2,793
Residential mortgages \| 30 to 59 Days Past Due
NET LOANS RECEIVABLE
Loans receivable	1,657
Residential mortgages \| 60 to 89 Days Past Due
NET LOANS RECEIVABLE
Loans receivable	1,219	2,322
Residential mortgages \| 90 or more Days Past Due
NET LOANS RECEIVABLE
Loans receivable	99	471
Residential mortgages \| Loans Not Past Due
NET LOANS RECEIVABLE
Loans receivable	817,800	790,864
Home equity loans and lines
NET LOANS RECEIVABLE
Loans receivable	97,492	97,629
Home equity loans and lines \| Past Due
NET LOANS RECEIVABLE
Loans receivable	1,176	1,268
Home equity loans and lines \| 30 to 59 Days Past Due
NET LOANS RECEIVABLE
Loans receivable	1,018	660
Home equity loans and lines \| 60 to 89 Days Past Due
NET LOANS RECEIVABLE
Loans receivable	125	216
Home equity loans and lines \| 90 or more Days Past Due
NET LOANS RECEIVABLE
Loans receivable	33	392
Home equity loans and lines \| Loans Not Past Due
NET LOANS RECEIVABLE
Loans receivable	96,316	96,361
Consumer
NET LOANS RECEIVABLE
Loans receivable	19,162	19,206
Consumer \| Past Due
NET LOANS RECEIVABLE
Loans receivable	58	2,585
Consumer \| 30 to 59 Days Past Due
NET LOANS RECEIVABLE
Loans receivable	18	2,585
Consumer \| 60 to 89 Days Past Due
NET LOANS RECEIVABLE
Loans receivable	40
Consumer \| Loans Not Past Due
NET LOANS RECEIVABLE
Loans receivable	$ 19,104	$ 16,621