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Sale and Exclusive License/Supply Agreement with Bimini Technologies (Details)
$ in Millions
12 Months Ended
Dec. 31, 2013
USD ($)
Sale and Exclusive License/Supply Agreement with Bimini Technologies [Abstract]  
Aggregate value of consideration paid by Bimini $ 5.0
Gain on Puregraft divestiture 4.5
Milestone payments from Bimini, maximum $ 10.0