XML 34 R53.htm IDEA: XBRL DOCUMENT v2.4.0.6
Income Taxes - Additional Information (Detail) (USD $)
In Millions, unless otherwise specified
6 Months Ended 12 Months Ended
Jun. 30, 2012
Dec. 31, 2011
Income Taxes [Line Items]    
Statutory federal income tax rate 40.00% 40.00%
Net operating loss carry forward $ 16.6