SEGMENT REPORTING - Reconciliation of Segment Net Income Loss and Assets (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Reportable segments and reconciliation to consolidated results [Abstract]
Interest and dividend income	$ 33,884	$ 32,362	$ 98,616	$ 94,967
Interest expense	11,196	13,974	35,303	40,729
Net interest income	22,688	18,388	63,313	54,238
Provision for credit losses	1,064	564	3,301	(597)
Net interest income after provision for credit losses	21,624	17,824	60,012	54,835
Non-interest income	6,088	5,919	1,272	17,174
Compensation expense and benefits	10,110	8,568	28,706	26,103
Net occupancy expense	1,371	1,422	4,335	4,360
Furniture and equipment expense	399	402	1,227	1,197
Data processing & software expense	2,534	2,567	7,631	7,437
Other non-interest expenses	3,231	3,551	10,442	10,330
Total non-interest expense	17,645	16,510	52,341	49,427
Income before income tax expense	10,067	7,233	8,943	22,582
Income tax expense (benefit)	2,275	1,513	1,580	4,825
Net income	7,792	5,720	7,363	17,757
Assets	2,696,634	2,774,215	2,696,634	2,774,215	$ 2,776,147
Capital expenditures	400	607	1,088	1,707
Depreciation expense	461	423	1,402	1,359
Operating Segments | Core Banking
Reportable segments and reconciliation to consolidated results [Abstract]
Interest and dividend income	33,884	32,354	98,615	94,942
Interest expense	10,301	13,975	34,203	40,734
Net interest income	23,583	18,379	64,412	54,208
Provision for credit losses	1,064	564	3,301	(597)
Net interest income after provision for credit losses	22,519	17,815	61,111	54,805
Non-interest income	2,813	2,625	(8,339)	7,864
Compensation expense and benefits	8,174	6,973	23,600	21,481
Net occupancy expense	1,312	1,362	4,144	4,182
Furniture and equipment expense	384	369	1,152	1,107
Data processing & software expense	2,232	2,255	6,692	6,589
Other non-interest expenses	3,072	3,346	9,680	9,595
Total non-interest expense	15,174	14,305	45,268	42,954
Income before income tax expense	10,158	6,135	7,504	19,715
Income tax expense (benefit)	2,337	1,280	1,344	4,224
Net income	7,821	4,855	6,160	15,491
Assets	2,663,118	2,777,492	2,663,118	2,777,492
Capital expenditures	400	607	1,088	1,707
Depreciation expense	447	409	1,357	1,317
Operating Segments | WMG
Reportable segments and reconciliation to consolidated results [Abstract]
Interest and dividend income	0	0	0	0
Interest expense	0	0	0	0
Net interest income	0	0	0	0
Provision for credit losses	0	0	0	0
Net interest income after provision for credit losses	0	0	0	0
Non-interest income	2,967	2,991	8,827	8,554
Compensation expense and benefits	1,698	1,383	4,432	4,047
Net occupancy expense	59	60	191	178
Furniture and equipment expense	12	30	53	71
Data processing & software expense	297	308	919	834
Other non-interest expenses	74	116	427	399
Total non-interest expense	2,140	1,897	6,022	5,529
Income before income tax expense	827	1,094	2,805	3,025
Income tax expense (benefit)	190	223	624	647
Net income	637	871	2,181	2,378
Assets	2,871	3,108	2,871	3,108
Capital expenditures	0	0	0	0
Depreciation expense	14	14	45	42
Holding Company and CFS
Reportable segments and reconciliation to consolidated results [Abstract]
Interest and dividend income	3	9	6	30
Interest expense	898	0	1,105	0
Net interest income	(895)	9	(1,099)	30
Provision for credit losses	0	0	0	0
Net interest income after provision for credit losses	(895)	9	(1,099)	30
Non-interest income	311	305	794	761
Compensation expense and benefits	238	212	674	575
Net occupancy expense	3	2	10	5
Furniture and equipment expense	3	3	22	19
Data processing & software expense	5	4	20	14
Other non-interest expenses	85	89	335	336
Total non-interest expense	334	310	1,061	949
Income before income tax expense	(918)	4	(1,366)	(158)
Income tax expense (benefit)	(252)	10	(388)	(46)
Net income	(666)	(6)	(978)	(112)
Assets	289,937	220,503	289,937	220,503
Capital expenditures	0	0	0	0
Depreciation expense	0	0	0	0
Inter-Segment Eliminations
Reportable segments and reconciliation to consolidated results [Abstract]
Interest and dividend income	(3)	(1)	(5)	(5)
Interest expense	(3)	(1)	(5)	(5)
Net interest income	0	0	0	0
Provision for credit losses	0	0	0	0
Net interest income after provision for credit losses	0	0	0	0
Non-interest income	(3)	(2)	(10)	(5)
Compensation expense and benefits	0	0	0	0
Net occupancy expense	(3)	(2)	(10)	(5)
Furniture and equipment expense	0	0	0	0
Data processing & software expense	0	0	0	0
Other non-interest expenses	0	0	0	0
Total non-interest expense	(3)	(2)	(10)	(5)
Income before income tax expense	0	0	0	0
Income tax expense (benefit)	0	0	0	0
Net income	0	0	0	0
Assets	(259,292)	(226,888)	(259,292)	(226,888)
Capital expenditures	0	0	0	0
Depreciation expense	$ 0	$ 0	$ 0	$ 0