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

Summary Of Stock Options Activity (Detail)

v2.4.0.8
Summary Of Stock Options Activity (Detail) (USD $)
 3 Months Ended 12 Months Ended
Mar. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Summary of stock option activity        
Options, Outstanding, Beginning Balance 1,799,991 1,945,688 447,659  
Options, granted 153,000 267,576 1,141,952  
Options, LecTec stock option from Merger     464,000  
Options, Forfeited   (354,932) (9,223)  
Options, Exercised   (58,341) (98,700)  
Options, Outstanding, Ending Balance   1,799,991 1,945,688 447,659
Weighted Average Exercise Price, Outstanding, Beginning Balance $ 2.54 $ 2.41 $ 0.27  
Options, Exercisable   941,876    
Weighted Average Exercise Price, Granted   $ 2.99 $ 2.61  
Weighted Average Exercise Price, LecTec Stock option from Merger     $ 3.48  
Weighted Average Exercise Price, Forfeited   $ (2.48) $ (0.06)  
Weighted Average Exercise Price, Exercised   $ (0.27) $ (0.27)  
Weighted Average Exercise Price, Outstanding, Ending balance   $ 2.54 $ 2.41 $ 0.27
Weighted Average Exercise Price, Exercisable   $ 2.71    
Weighted Average Remaining Contractual Term (Years), Outstanding   7 years 7 months 28 days 7 years 4 months 6 days 8 years 7 months 13 days
Weighted Average Remaining Contractual Term (Years), Exercisable   7 years 1 month 10 days