Year Ended December 31,

2020

2019

2018

(Amounts in thousands, except share and per share data)

Net income

$

35,926

$

38,802

$

36,340

Weighted average common shares outstanding, basic

17,781,748

15,690,812

16,587,504

Dilutive effect of potential common shares

Stock options

22,495

53,907

62,417

Restricted stock

11,137

11,374

16,464

Total dilutive effect of potential common shares

33,632

65,281

78,881

Weighted average common shares outstanding, diluted

17,815,380

15,756,093

16,666,385

Basic earnings per common share

$

2.02

$

2.47

$

2.19

Diluted earnings per common share

2.02

2.46

2.18

Antidilutive potential common shares

Stock options

58,166

25

19

Restricted stock

26,900

25,853

2,736

Total potential antidilutive shares

85,066

25,878

2,755