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

Stockholders' Equity (Detail) - Stock Options Issued Activity

v2.4.0.6
Stockholders' Equity (Detail) - Stock Options Issued Activity (USD $)
 1 Months Ended 9 Months Ended 12 Months Ended 0 Months Ended 12 Months Ended 0 Months Ended 12 Months Ended
Nov. 30, 2013
Nov. 30, 2012
Sep. 30, 2012
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Dec. 22, 2009
Dec. 31, 2008
Dec. 31, 2008
Minimum [Member]
Dec. 31, 2011
Minimum [Member]
Dec. 31, 2010
Minimum [Member]
Dec. 31, 2009
Minimum [Member]
Dec. 31, 2008
Maximum [Member]
Dec. 31, 2011
Maximum [Member]
Dec. 31, 2010
Maximum [Member]
Dec. 31, 2009
Maximum [Member]
Balance Options Outstanding (in Shares)     6,132,127 3,679,977 3,762,477 669,777   599,875                
Balance Range of Exercise Prices Minimum                 $ 0.88 $ 0.88 $ 0.88 $ 0.88        
Balance Range of Exercise Prices Maximum                         $ 24.00 $ 9.64 $ 24.00 $ 24.00
Balance Weighted-Average Exercise Price Per Share     $ 1.58 $ 2.05 $ 2.11 $ 4.28   $ 3.62                
Balance Intrinsic Value (in Dollars)         $ 262,500 [1] $ 3,694,400 [1]   $ 3,742,700 [1]                
Options exercisable (in Shares)       1,501,659 433,746 483,364   432,083                
Options exercisable Range of Exercise Prices Minimum                 $ 0.88 $ 0.88 $ 0.88 $ 0.88        
Options exercisable Range of Exercise Prices Maximum     $ 1.80     $ 3.20             $ 24.00 $ 9.64 $ 24.00 $ 24.00
Options exercisable Weighted-Average Exercise Price Per Share       $ 2.15 $ 3.03 $ 2.78 $ 9.64 $ 2.70                
Options exercisable Intrinsic Value (in Dollars)         262,500 [1] 3,424,333 [1]   3,133,667 [1]                
Options granted Options Outstanding (in Shares) 100,000 300,000 2,797,400   3,246,450 [2] 93,402 [2]                    
Options granted Range of Exercise Prices (in Dollars per share)   $ 1.63 $ 1.02   $ 1.80 [2] $ 9.64 [2]                    
Options granted Weighted-Average Exercise Price Per Share   $ 1.63 $ 1.02   $ 1.80 [2] $ 9.64 [2]                    
Options exercised (in Shares)     30,000     (3,333)                    
Options exercised     $ 1.80     $ 3.20             $ 24.00 $ 9.64 $ 24.00 $ 24.00
Options cancelled or forfeited Options Outstanding (in Shares)       (82,500) (153,750) (20,167)                    
Options cancelled or forfeited Range of Exercise Prices Minimum                   $ 1.80 $ 3.20 $ 1.64        
Options cancelled or forfeited Range of Exercise Prices Maximum       $ 4.93   $ 9.60               $ 24.00 $ 24.00 $ 20.00
Options cancelled or forfeited Weighted-Average Exercise Price Per Share       $ 4.93   $ 9.60               $ 24.00 $ 24.00 $ 20.00
Options Outstanding (in Shares)     6,132,127 3,679,977 3,762,477 669,777   599,875                
Outstanding Range of Exercise Prices Minimum                 $ 0.88 $ 0.88 $ 0.88 $ 0.88        
Outstanding Range of Exercise Prices Maximum                         $ 24.00 $ 9.64 $ 24.00 $ 24.00
Outstanding Weighted-Average Exercise Price Per Share     $ 1.58 $ 2.05 $ 2.11 $ 4.28   $ 3.62                
Outstanding Intrinsic Value (in Dollars)         $ 262,500 [1] $ 3,694,400 [1]   $ 3,742,700 [1]                
[1] Intrinsic value is calculated as the estimated fair value of the Company's stock at the end of the related period less the option exercise price of in-the-money options.
[2] All options granted during the years ended December 31, 2009 and 2010 were granted with exercise prices of $9.64 and $1.80 per share, respectively, which was deemed to be the fair market value of the Company's stock on the date of grant.