SEGMENT REPORTING - Reconciliation of Segment Net Income Loss and Assets (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Reportable segments and reconciliation to consolidated results [Abstract]
Interest and dividend income	$ 31,219	$ 26,230
Interest expense	13,130	6,283
Net interest income	18,089	19,947
Provision for credit losses	(2,040)	277
Net interest income after provision for credit losses	20,129	19,670
Other non-interest income	5,657	5,423
Other non-interest expenses	16,698	15,836
Income before income tax expense	9,088	9,257
Income tax expense (benefit)	2,038	1,987
Net income	7,050	7,270
Assets	2,784,890	2,654,183	$ 2,710,529
Operating Segments | Core Banking
Reportable segments and reconciliation to consolidated results [Abstract]
Interest and dividend income	31,211	26,203
Interest expense	13,130	6,283
Net interest income	18,081	19,920
Provision for credit losses	(2,040)	277
Net interest income after provision for credit losses	20,121	19,643
Other non-interest income	2,742	2,651
Other non-interest expenses	14,539	13,696
Income before income tax expense	8,324	8,598
Income tax expense (benefit)	1,870	1,831
Net income	6,454	6,767
Assets	2,778,785	2,644,158
Operating Segments | WMG
Reportable segments and reconciliation to consolidated results [Abstract]
Interest and dividend income	0	0
Interest expense	0	0
Net interest income	0	0
Provision for credit losses	0	0
Net interest income after provision for credit losses	0	0
Other non-interest income	2,703	2,580
Other non-interest expenses	1,895	1,798
Income before income tax expense	808	782
Income tax expense (benefit)	182	177
Net income	626	605
Assets	2,898	2,538
Intersegment Eliminations
Reportable segments and reconciliation to consolidated results [Abstract]
Interest and dividend income	8	27
Interest expense	0
Net interest income	8	27
Provision for credit losses	0	0
Net interest income after provision for credit losses	8	27
Other non-interest income	212	192
Other non-interest expenses	264	342
Income before income tax expense	(44)	(123)
Income tax expense (benefit)	(14)	(21)
Net income	(30)	(102)
Assets	$ 3,207	$ 1,714