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STOCK BASED COMPENSATION PLANS (Details 3) - Long Term Incentive Plan - Restricted stock units
6 Months Ended
Jun. 30, 2018
$ / shares
shares
Shares  
Unvested, January 1, 2018 | shares 68,776
Granted | shares 21,693
Reinvested dividends | shares 987
Forfeited | shares (13,333)
Unvested, June 30, 2018 | shares 78,123
Weighted Average Grant-Date Fair Value  
Unvested, January 1, 2018 | $ / shares $ 24.46
Granted | $ / shares 33.23
Reinvested dividends | $ / shares 26.01
Forfeited | $ / shares 21.85
Unvested, June 30, 2018 | $ / shares $ 27.36