Regulatory Matters (Tables)

12 Months Ended

Dec. 31, 2023

Regulated Operations [Abstract]

Actual and Required Capital Ratios of Bank

	Actual				Required for Capital Adequacy Purposes				Required to be Considered Well Capitalized Under Prompt Corrective Action Regulations
(in thousands)	Amount		Ratio		Amount		Ratio		Amount		Ratio
As of December 31, 2023:
Total Capital (to Risk Weighted Assets):
Consolidated	$	1,196,106	14.73	%	$	852,850	10.50	%	N/A		N/A
Tri Counties Bank	$	1,190,542	14.66	%	$	852,648	10.50	%	$	812,046	10.00	%
Tier 1 Capital (to Risk Weighted Assets):
Consolidated	$	1,052,063	12.95	%	$	690,402	8.50	%	N/A		N/A
Tri Counties Bank	$	1,088,717	13.41	%	$	690,239	8.50	%	$	649,637	8.00	%
Common equity Tier 1 Capital (to Risk Weighted Assets):
Consolidated	$	994,907	12.25	%	$	568,566	7.00	%	N/A		N/A
Tri Counties Bank	$	1,088,717	13.41	%	$	568,432	7.00	%	$	527,830	6.50	%
Tier 1 Capital (to Average Assets):
Consolidated	$	1,052,063	10.75	%	$	391,620	4.00	%	N/A		N/A
Tri Counties Bank	$	1,088,717	11.12	%	$	391,574	4.00	%	$	489,468	5.00	%

	Actual				Required for Capital Adequacy Purposes				Required to be Considered Well Capitalized Under Prompt Corrective Action Regulations
(in thousands)	Amount		Ratio		Amount		Ratio		Amount		Ratio
As of December 31, 2022:
Total Capital (to Risk Weighted Assets):
Consolidated	$	1,115,257	14.19	%	$	825,234	10.50	%	N/A		N/A
Tri Counties Bank	$	1,107,941	14.10	%	$	825,039	10.50	%	$	785,751	10.00	%
Tier 1 Capital (to Risk Weighted Assets):
Consolidated	$	974,325	12.40	%	$	668,047	8.50	%	N/A		N/A
Tri Counties Bank	$	1,009,577	12.85	%	$	667,888	8.50	%	$	628,601	8.00	%
Common equity Tier 1 Capital (to Risk Weighted Assets):
Consolidated	$	917,565	11.67	%	$	550,156	7.00	%	N/A		N/A
Tri Counties Bank	$	1,009,577	12.85	%	$	550,026	7.00	%	$	510,738	6.50	%
Tier 1 Capital (to Average Assets):
Consolidated	$	974,325	10.14	%	$	384,337	4.00	%	N/A		N/A
Tri Counties Bank	$	1,009,577	10.51	%	$	384,146	4.00	%	$	480,183	5.00	%