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

Stockholders' Equity (Detail) - Status Summary Nonvested Stock Options

v2.3.0.11
Stockholders' Equity (Detail) - Status Summary Nonvested Stock Options (USD $)
 12 Months Ended 0 Months Ended 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Jun. 30, 2012
Dec. 31, 2008
Dec. 31, 2008
Nonvested [Member]
Dec. 31, 2011
Nonvested [Member]
Dec. 31, 2010
Nonvested [Member]
Dec. 31, 2009
Nonvested [Member]
Nonvested Shares 3,679,977 3,762,477 669,777 6,111,127 599,875 167,792 2,178,318 3,328,731 186,413
Nonvested Stock Options Weighted-Average Grant Date Fair Value (in Dollars per share)           $ 1.67 $ 0.87 $ 0.88 $ 2.41
Granted Shares               3,246,450 93,402
Granted Stock Options Weighted-Average Grant Date Fair Value (in Dollars per share)   $ 0.83 $ 2.83         $ 0.83 $ 2.83
Forfeited Shares (82,500) (153,750) (20,167)       (51,833) (41,667) (7,250)
Forfeited Stock Options Weighted-Average Grant Date Fair Value (in Dollars per share)             $ 0.88 $ 1.92 $ 2.84
Vested Shares             (1,098,580) (62,465) (67,531)
Vested Stock Options Weighted-Average Grant Date Fair Value (in Dollars per share)             $ 0.89 $ 2.31 $ 1.11