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Investment in Partially
6 Months Ended
Jun. 30, 2011
Investment in Partially-Owned Affiliate [Abstract]  
Investment in Partially
(5)       Investment in Partially-Owned Affiliate
 
The Company owns an equity stake in Zenara Pharma for which the Company recorded a loss of $303 and $667 for the three and six months ended June 30, 2011, respectively.  These amounts include amortization expense of $288 and $570, respectively.