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


	Three Months Ended				Six Months Ended
	June 30,				June 30,
(Amounts in thousands, except share and per share data)	2016		2015		2016		2015
Net income	$	6,255	$	6,175	$	12,339	$	12,133
Dividends on preferred stock		—		—		—		105

Net income available to common shareholders	$	6,255	$	6,175	$	12,339	$	12,028

Weighted average common shares outstanding, basic		17,414,320		18,831,907		17,636,783		18,733,288
Dilutive effect of potential common shares
Stock options		32,365		24,389		29,605		22,914
Restricted stock		16,160		3,988		8,740		2,555
Convertible preferred stock		—		—		—		336,651

Total dilutive effect of potential common shares		48,525		28,377		38,345		362,120

Weighted average common shares outstanding, diluted		17,462,845		18,860,284		17,675,128		19,095,408

Basic earnings per common share	$	0.36	$	0.33	$	0.70	$	0.64
Diluted earnings per common share		0.36		0.33		0.70		0.64
Antidilutive potential common shares
Stock options		130,165		136,382		147,713		136,382

Total potential antidilutive shares		130,165		136,382		147,713		136,382