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Commitments and Contingencies
3 Months Ended
Mar. 31, 2013
Commitments and Contingencies [Abstract]  
Commitments and Contingencies
7. Commitments and Contingencies

Purchase Commitments

As of March 31, 2013, as part of our normal course of business, we have purchase commitments to purchase $1.5 million of inventory through 2014.