Earnings per Share (Tables)

3 Months Ended

Mar. 31, 2013

Earnings Per Share [Abstract]

Basic and diluted earnings per share

	Three Months Ended March 31,
(Dollars and shares in thousands, except per share data)	2013		2012
Numerator for basic and diluted earnings per share—income available to common shareholders	$	5,398	$	5,263
Denominator for basic earnings per share—weighted-average shares outstanding		16,788		16,749
Effect of dilutive securities—employee stock options and awards		71		2
Denominator for diluted earnings per share—adjusted weighted-average shares outstanding		16,859		16,751
Basic earnings per share	$	0.32	$	0.31
Diluted earnings per share	$	0.32	$	0.31
Average anti-dilutive options and awards excluded from computation of diluted earnings per share		653		585