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Investment Income and Other (Tables)
 12 Months Ended
Dec. 31, 2011
Investment Income and Other  
Schedule of Investment Income and Other

Year Ended December 31,

2011

2010

2009

Dividend income

$

4,094

$

4,541

$

4,668

Interest Income

155

84

1,241

Realized gains on sales of marketable securities

7,164

-

1,148

Recovery of previous write-downs of marketable securities

2,735

-

1,255

Other income

596

566

269

$

14,744

$

5,191

$

8,581