Numerator:

Net income

$

3,211

$

4,345

Less: Net income attributable to participating securities

$

175

$

326

Net income attributable to common stock

$

3,036

$

4,019

Denominator:

Weighted average of common shares outstanding, basic

41,266

39,205

Potential dilutive effect of stock options

70

141

Weighted average of common shares outstanding, diluted

41,336

39,346