Earnings Per Common Share (Tables)

12 Months Ended

Dec. 31, 2017

Earnings Per Share [Abstract]

Calculations of Basic and Diluted Earnings per Common Share

The calculations of basic and diluted earnings per common share for the years ended December 31 were as follows:  

(Dollars in thousands, except per common share data)	2017		2016		2015
Distributed earnings allocated to common shareholders	$	15,159	$	11,532	$	10,426
Undistributed earnings allocated to common shareholders	23,115		19,483		404
Net earnings allocated to common shareholders	$	38,274	$	31,015	$	10,830
Weighted-average common shares outstanding	18,050,189		18,013,693		17,555,140
Effect of potentially dilutive common shares	158,495		141,770		132,655
Total weighted-average diluted common shares outstanding	18,208,684		18,155,463		17,687,795
Earnings per common share:
Basic	$	2.12	$	1.72	$	0.62
Diluted	$	2.10	$	1.71	$	0.61
Anti-dilutive common shares excluded from calculation:
Restricted shares, stock options and stock appreciation rights	453		20,769		46,109