General form of registration statement for all companies including face-amount certificate companies

Related Party License Agreements (Detail)

v2.3.0.11
Related Party License Agreements (Detail) (USD $)
 3 Months Ended 6 Months Ended 6 Months Ended 12 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Original [Member]
BSC Neuro Agreement [Member]
Dec. 31, 2011
Original [Member]
BSC Neuro Agreement [Member]
Jun. 30, 2012
Amended [Member]
BSC Neuro Agreement [Member]
Jun. 30, 2012
BSC Neuro Agreement [Member]
Dec. 31, 2011
BSC Neuro Agreement [Member]
Dec. 31, 2008
BSC Neuro Agreement [Member]
Jun. 30, 2012
BSC Cardiac Agreement [Member]
Dec. 31, 2008
BSC Cardiac Agreement [Member]
Related Party Transaction, Maximum Amount of Milestone-Based Payments         $ 1,600,000 $ 1,600,000 $ 800,000   $ 20,000,000   $ 20,000,000  
Related Party Transaction, Potential Incentive Payments               500,000 500,000      
Revenue from Related Parties $ 650,000 $ 650,000 $ 1,300,000 $ 1,300,000       $ 750,000 $ 750,000 $ 13,000,000   $ 13,000,000
Related Party Transaction, Deferred Revenue Recognition Period                 5 years   5 years