Regulatory Matters (Tables)

12 Months Ended

Dec. 31, 2019

Banking and Thrift [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
(dollars in thousands)	Amount		Ratio		Amount		Ratio		Amount		Ratio
As of December 31, 2019:
Total Capital (to Risk Weighted Assets):
Consolidated	$	753,200	15.07	%	$	524,944	10.50	%	N/A		N/A
Tri Counties Bank	$	748,660	14.98	%	$	524,759	10.50	%	$	499,770	10.00	%
Tier 1 Capital (to Risk Weighted Assets):
Consolidated	$	719,809	14.40	%	$	424,955	8.50	%	N/A		N/A
Tri Counties Bank	$	715,269	14.31	%	$	424,805	8.50	%	$	399,816	8.00	%
Common equity Tier 1 Capital (to Risk Weighted Assets):
Consolidated	$	664,296	13.29	%	$	349,963	7.00	%	N/A		N/A
Tri Counties Bank	$	715,269	14.31	%	$	349,839	7.00	%	$	324,851	6.50	%
Tier 1 Capital (to Average Assets):
Consolidated	$	719,809	11.55	%	$	249,343	4.00	%	N/A		N/A
Tri Counties Bank	$	715,269	11.47	%	$	249,337	4.00	%	$	311,672	5.00	%

	Actual				Required for Capital Adequacy Purposes				Required to be Considered Well Capitalized Under Prompt Corrective Action Regulations
(dollars in thousands)	Amount		Ratio		Amount		Ratio		Amount		Ratio
As of December 31, 2018:
Total Capital (to Risk Weighted Assets):
Consolidated	$	682,419	14.40	%	$	497,486	10.50	%	N/A		N/A
Tri Counties Bank	$	680,624	14.37	%	$	497,305	10.50	%	$	473,624	10.00	%
Tier 1 Capital (to Risk Weighted Assets):
Consolidated	$	647,262	13.66	%	$	402,727	8.50	%	N/A		N/A
Tri Counties Bank	$	645,467	13.63	%	$	402,581	8.50	%	$	378,899	8.00	%
Common equity Tier 1 Capital (to Risk Weighted Assets):
Consolidated	$	591,933	12.49	%	$	331,658	7.00	%	N/A		N/A
Tri Counties Bank	$	645,467	13.63	%	$	331,537	7.00	%	$	307,856	6.50	%
Tier 1 Capital (to Average Assets):
Consolidated	$	647,262	10.68	%	$	242,452	4.00	%	N/A		N/A
Tri Counties Bank	$	645,467	10.65	%	$	242,447	4.00	%	$	303,059	5.00	%