Stock Based Compensation Plans (Tables)
9 Months Ended
Sep. 30, 2012
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Assumptions utilized in the valuation for options granted
The following assumptions were utilized in the valuation for options granted during the nine months ended September 30, 2011. There were no options granted during the nine month period September 30, 2012.
 
Nine Months Ended September 30,
 
2011
Dividend yield

Risk-free interest rate
1.95%-3.37%

Weighted-average expected life
7.3 years

Volatility
35.0%-35.2%