Regulatory Matters (Tables)

9 Months Ended

Sep. 30, 2023

Banking Regulation, Global Systemically Important Bank (GSIB) Surcharge [Abstract]

Summary of Actual and Required Capital Ratios of Bank

	Actual				Required for Capital Adequacy Purposes				Required to be Considered Well Capitalized
As of September 30, 2023:	Amount		Ratio		Amount		Ratio		Amount		Ratio
	(dollars in thousands)
Total Capital (to Risk Weighted Assets):
Consolidated	$	1,177,733	14.51	%	$	852,532	10.50	%	N/A		N/A
Tri Counties Bank	$	1,172,064	14.44	%	$	852,325	10.50	%	$	811,738	10.00	%
Tier 1 Capital (to Risk Weighted Assets):
Consolidated	$	1,033,710	12.73	%	$	690,145	8.50	%	N/A		N/A
Tri Counties Bank	$	1,070,347	13.19	%	$	689,978	8.50	%	$	649,391	8.00	%
Common equity Tier 1 Capital (to Risk Weighted Assets):
Consolidated	$	976,657	12.03	%	$	568,355	7.00	%	N/A		N/A
Tri Counties Bank	$	1,070,347	13.19	%	$	568,217	7.00	%	$	527,630	6.50	%
Tier 1 Capital (to Average Assets):
Consolidated	$	1,033,710	10.60	%	$	389,994	4.00	%	N/A		N/A
Tri Counties Bank	$	1,070,347	10.98	%	$	389,953	4.00	%	$	487,441	5.00	%

	Actual				Required for Capital Adequacy Purposes				Required to be Considered Well Capitalized
As of December 31, 2022:	Amount		Ratio		Amount		Ratio		Amount		Ratio
	(dollars in thousands)
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	%