Quarterly report pursuant to Section 13 or 15(d)

Goodwill (Details)

v2.4.0.6
Goodwill (Details) (USD $)
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Goodwill and Intangible Assets Disclosure [Abstract]    
Impairment loss for goodwill $ 0 $ 0