Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2012

Quarterly Financial Data (Unaudited) [Abstract]

Summary of quarterly financial data

The following is a summary of selected quarterly financial data (unaudited) for the years ended December 31:

(Dollars in thousands)	Interest income		Net interest income		Net income		Basic earnings per share		Diluted earnings per  share
2012
First quarter	$	5,132	$	4,313	$	1,055	$	0.39	$	0.39
Second quarter		5,151		4,397		1,141		0.41		0.41
Third quarter		5,148		4,426		1,231		0.45		0.45
Fourth quarter		5,153		4,470		1,120		0.41		0.41
2011
First quarter	$	4,946	$	3,934	$	896	$	0.33	$	0.33
Second quarter		5,003		4,096		973		0.35		0.35
Third quarter		4,958		4,098		998		0.37		0.37
Fourth quarter		5,111		4,212		820		0.30		0.30