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Stock Based Compensation (Policies)
3 Months Ended
Mar. 31, 2013
Stock-Based Compensation [Abstract]  
Stock-based compensation policy
The Company estimates the fair value of stock options on the grant date using the Black-Scholes-Merton option-pricing model. The Black-Scholes-Merton option-pricing model requires subjective assumptions, including future stock price volatility and expected time to exercise, which greatly affect the calculated values. There is no expected dividend rate. Historical Company information was the basis for the expected volatility assumption. The fair value of grants was calculated using historical volatility as the Company believes that the historical volatility over the life of the option is indicative of expected volatility in the future. The risk-free interest rate is based on the U.S. Treasury zero-coupon rates with a remaining term equal to the expected term of the option. Accounting Standards Codification ("ASC") 718, Stock Compensation, also requires forfeitures to be estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures differ from those estimates. Based on past history of actual performance, a zero forfeiture rate has been assumed.