2012

2011

2010

Numerator:

Net income attributable to common shareholders

$

17,933

$

20,974

$

15,645

Denominator:

Denominator for basic earnings per share—weighted-average shares

11,804

11,814

11,638

Effect of dilutive securities—Stock options

100

163

232

Denominator for diluted earnings per share— adjusted weighted-average shares and assumed conversions

11,904

11,977

11,870

Earnings per common share:

Basic—net income attributable to common shareholders

$

1.52

$

1.78

$

1.34

Diluted—net income attributable to common shareholders

$

1.51

$

1.75

$

1.32