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SHARE BASED COMPENSATION (Tables)
3 Months Ended
Mar. 31, 2017
Share Based Compensation [Abstract]  
Fair Values of all Options Granted Estimated Using Binomial Option-Pricing Model with Weighted-average Assumptions

The fair values of all of the options granted for the periods indicated have been estimated using a binomial option-pricing model. The weighted-average assumptions for the periods shown are presented in the following table:

Three Months Ended March 31,
20172016
Dividend yield2.45%3.48%
Weighted average expected volatility40.27%41.54%
Weighted average risk-free interest rate2.14%1.42%
Weighted average expected lives (in years)5.675.71
Weighted average grant-date fair value$13.42$7.75
Summary of Share Option Activity

A summary of share option activity for the period indicated is reflected in the following table:

Weighted
NumberWeightedAverageAggregate
ofAverageContractualIntrinsic
CommonExerciseRemainingValue
SharesShare PriceLife (Years)(in thousands)
Balance at January 1, 2017108,503$22.46$1,902
Granted12,941$42.48
Exercised(17,362)$17.33$427
Forfeited or expired(1,455)$26.60
Balance at March 31, 2017102,627$25.804.1$1,584
Exercisable at March 31, 201751,309$20.962.5$1,028
Weighted average fair value of options
granted during the year$13.42
Summary of Activity for Company's Non-Vested Options

A summary of the activity for the Company’s restricted stock for the period indicated is presented in the following table:

NumberWeighted
ofAverage
CommonGrant-Date
(In dollars, except share data):SharesFair Value
Restricted stock at January 1, 2017212,646$25.19
Granted55,211$42.48
Vested(11,765)$19.02
Forfeited(3,282)$25.00
Restricted stock at March 31, 2017252,810$29.26