Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share (Details Textual)

v2.4.0.6
Earnings Per Share (Details Textual)
3 Months Ended 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Earnings Per Share (Textual) [Abstract]        
Option to purchase shares, anti-dilutive 1,018,900 2,490,004 1,018,900 2,490,004