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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $) In Thousands, except Share data	Jun. 30, 2011	Dec. 31, 2010
Current assets:
Allowance for doubtful accounts receivable	$ 2,351	$ 2,565
Stockholders' deficit:
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares issued	22,822,467	22,667,650
Common stock, shares outstanding	22,822,467	22,667,650

Total number of shares of common stock held by shareholders. May be all or portion of the number of common shares authorized. These shares represent the ownership interest of the common shareholders. Shares outstanding equals shares issued minus shares held in treasury and other adjustments, if any.

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