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Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data	Jun. 30, 2011	Dec. 31, 2010
Consolidated Balance Sheets
Accounts and other receivable, allowance for doubtful accounts and sales returns	$ 2,336	$ 5,286
Common stock, no par value
Common stock, shares issued	32,013,568	31,883,173
Common stock, shares outstanding	32,013,568	31,883,173

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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