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Receivables
12 Months Ended
Dec. 31, 2012
Receivables [Abstract]  
Receivables
3. Receivables
 
At December 31, 2012 and 2011, the Company had a receivable of $0.1 million and $0.2 million, respectively, primarily related to annual licensing fees due to the Company. Due to the likelihood of the collectability of the accounts receivable, no allowance was recorded.