Annual report pursuant to Section 13 and 15(d)

EMPLOYEE BENEFITS AND SHARE BASED COMPENSATION (Estimated Stock Option on the Date of Grant Fair Value) (Details)

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EMPLOYEE BENEFITS AND SHARE BASED COMPENSATION (Estimated Stock Option on the Date of Grant Fair Value) (Details) (USD $)
 12 Months Ended
Dec. 31, 2012
Estimated stock option on the date of grant fair value  
Dividend yield 2.47%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate [1]
Expected life in years 7 years [2]
Expected volatility 41.53%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate [3]
Risk-free interest rate 1.24%us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate [4]
Weighted average fair value per option granted $ 4.76us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
[1] Calculated as the ratio of historical dividends paid per share of common stock to the stock price on the date of grant.
[2] Based on the average of the contractual life and vesting schedule for the respective option.
[3] Based on the monthly historical volatility of the Company’s common stock price over the expected life of the options.
[4] Based upon the Treasury bill yield curve, for periods within the contractual life of the option, in effect at the time of grant.