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Treasury Stock | 12 Months Ended
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Dec. 31, 2012
Treasruy Stock [Abstract] |
Treasury Stock [Text Block] | Treasury Stock In July 2010, our Board of Directors approved a common stock purchase plan to purchase up to $40.0 million of our common stock. This plan has no expiration date and we have $28.1 million remaining on this purchase plan. We did not repurchase any of our common stock in the year ended December 31, 2012. We expect to use the treasury stock to issue shares for stock option exercises, restricted stock grants and employee stock purchase plan stock purchases.

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- Definition The entire disclosure for an entity's treasury stock, including the average cost per share, carrying basis for each class of treasury stock, description of share repurchase program authorized by an entity's board of directors, the number of shares repurchased, the cost of the shares repurchased, the remaining maximum dollar value of shares available for repurchase under the program, the treatment of the purchase price in excess of the current market value, number of shares held for each class of treasury stock, and other information necessary to a fair presentation. + References No definition available. + Details
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