The following table presents the calculation of basic and diluted earnings per common share for the periods indicated:


	Year Ended December 31,
(Amounts in thousands, except share and per share data)	2014		2013		2012
Net income	$	25,490	$	23,312	$	28,577
Dividends on preferred stock		910		1,024		1,058

Net income available to common shareholders	$	24,580	$	22,288	$	27,519

Weighted average number of common shares outstanding, basic		18,406,363		19,792,099		19,127,065
Dilutive effect of potential common shares from:
Stock options		18,607		19,337		4,549
Restricted stock		461		5,014		2,107
Convertible preferred stock		1,046,175		1,132,998		1,285,848
Contingently issuable shares		11,448		12,352		—

Weighted average number of common shares outstanding, diluted		19,483,054		20,961,800		20,419,569

Basic earnings per common share	$	1.34	$	1.13	$	1.44
Diluted earnings per common share	$	1.31	$	1.11	$	1.40

Antidilutive potential common shares:
Stock options		222,651		317,420		420,802
Restricted stock		—		271		—

Total potential antidilutive shares		222,651		317,691		420,802