XML 29 R17.htm IDEA: XBRL DOCUMENT v2.3.0.15
Earnings Per Share
9 Months Ended
Sep. 30, 2011
Earnings Per Share [Abstract] 
Earnings Per Share
10.  EARNINGS PER SHARE
          The following is a reconciliation of the numerator and denominator used for the computation of basic and diluted net income per common share: