Regulatory Matters (Tables)

12 Months Ended

Dec. 31, 2017

Regulatory Matters [Abstract]

Bank's actual capital amounts and ratios

Our regulatory capital amounts and ratios were as follows:

						Minimum					Minimum					To be Well
	Actual					Requirements for Capital Adequacy					Requirements with Capital					Capitalized Under Prompt Corrective
						Purposes					Conservation Buffer					Action Provision
	Amount		Ratio			Amount		Ratio			Amount		Ratio			Amount		Ratio
December 31, 2017	(dollars in thousands)
Common Equity Tier 1 Capital (to risk-weighted assets)	$	105,721		16.5	%	$	28,904		4.5	%	$	36,933		5.8	%	$	41,750		6.5	%
Total capital (to risk-weighted assets)		113,758		17.7	%		51,385		8.0	%		59,414		9.3	%		64,231		10.0	%
Tier 1 capital (to risk-weighted assets)		105,721		16.5	%		38,539		6.0	%		46,567		7.3	%		51,385		8.0	%
Tier 1 capital (to average quarterly assets)		105,721		13.5	%		31,440		4.0	%		41,264		5.3	%		39,300		5.0	%
December 31, 2016
Common Equity Tier 1 Capital (to risk-weighted assets)	$	98,970		16.5	%	$	26,983		4.5	%	$	30,730		5.1	%	$	38,975		6.5	%
Total capital (to risk-weighted assets)		106,517		17.8	%		47,969		8.0	%		51,717		8.6	%		59,962		10.0	%
Tier 1 capital (to risk-weighted assets)		98,970		16.5	%		35,977		6.0	%		39,725		6.6	%		47,969		8.0	%
Tier 1 capital (to average quarterly assets)		98,970		12.9	%		30,634		4.0	%		35,420		4.6	%		38,292		5.0	%