Annual report pursuant to Section 13 and 15(d)

Earnings per Share (Details Textual)

v2.4.0.6
Earnings per Share (Details Textual)
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Earnings Per Share (Textual) [Abstract]      
Anti-dilutive stock awards 309,952 383,101 259,682