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Condensed Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified | Sep. 30, 2013 | Dec. 31, 2012
--- | --- | ---
Restricted cash (in Dollars) | $ 0 | $ 252
Trade accounts receivable, allowances (in Dollars) | $ 137 | $ 265
Common stock, par value (in Dollars per share) | $ 0.0001 | $ 0.0001
Common stock, shares authorized (in Shares) | 100,000,000 | 100,000,000
Common stock, shares issued (in Shares) | 49,158,886 | 44,698,650
Common stock, shares outstanding (in Shares) | 49,158,886 | 44,698,650

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