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Preferred Stock
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12 Months Ended | ||||
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Dec. 31, 2011
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| Preferred Stock [Abstract] | |||||
| Preferred Stock [Text Block] |
The board of directors of PDI (Board) is authorized to issue, from time-to-time, up to 5,000,000 shares of preferred stock in one or more series. The Board is authorized to fix the rights and designation of each series, including dividend rights and rates, conversion rights, voting rights, redemption terms and prices, liquidation preferences and the number of shares of each series. As of December 31, 2011 and 2010, there were no issued and outstanding shares of preferred stock.
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