Consolidated Balance Sheet (Parenthetical) (USD $) In Thousands, except Share data	Sep. 30, 2011	Dec. 31, 2010
Current assets
Allowance for doubtful accounts receivable, current	$ 308	$ 588
Stockholders equity
Preferred stock, par value	$ 0.001	$ 0.001
Preferred stock, shares authorized	25,000,000	25,000,000
Preferred stock, shares issued	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	117,793,000	102,471,000
Common stock, shares outstanding	117,793,000	102,471,000