Parenthetical - Balance Sheet (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Allowance for doubtful accounts	$ 509	$ 525
Common stock, par value	$ 0.04	$ 0.04
Common stock, shares authorized	240,000,000	240,000,000
Common stock, shares issued	69,844,782	69,678,982
Entity Common Stock, Shares Outstanding	69,835,387	69,669,587
Treasury stock, number of shares	9,395	9,395