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Investment in Enterworks
6 Months Ended
Jun. 30, 2011
Investment In Enterworks [Abstract]  
Investment in Enterworks
Note 4.    Investment in Enterworks
 
 As of June 30, 2011, we owned 671,301 shares of common stock, 729,732 shares of Series A-1 Preferred Stock, 1,793,903 shares of Series B-1 Preferred Stock, and 8,571,429 shares of Series D Preferred Stock of Enterworks, Inc. (“Enterworks”) and warrants to purchase 1,785,714 underlying common stock shares, representing a fully diluted ownership percentage of 8.2% of Enterworks.  Since our initial investment in Enterworks, we accounted for our investment under the equity method of accounting, due to our significant influence on Enterworks' operations through our representation on the Board of Directors of Enterworks.  However, effective January 1, 2008, we discontinued the equity method of accounting for our investment in Enterworks due to our significantly diminished role in Enterworks' operations.  We previously reduced the carrying value of our investment in Enterworks to zero.