Three Months Ended
June 30,

Six Months Ended
June 30,

2012

2011

2012

2011

Numerator:

Net income attributable to common shareholders

$

4,849

$

4,900

$

9,327

$

8,646

Denominator:

Denominator for basic earnings per share - weighted-average shares

11,781

11,807

11,754

11,767

Effect of dilutive securities - Stock options

122

192

118

211

Denominator for diluted earnings per share - adjusted weighted-average shares

11,903

11,999

11,872

11,978

Earnings per share attributable to common shareholders:

Basic

$

0.41

$

0.42

$

0.79

$

0.73

Diluted

$

0.41

$

0.41

$

0.79

$

0.72