EARNINGS PER SHARE (Computation of Basic and Diluted Earnings Per Share) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014		Mar. 31, 2013
Earnings Per Share [Abstract]
Net income	$ 5,715		$ 5,662
Dividends and undistributed earnings allocated to participating securities	(17)	[1]	(10)	[1]
Net income loss available to common shareholders	$ 5,698		$ 5,652
Weighted-average common shares outstanding for basic EPS	7,528,751		7,627,691
Dilutive effect of stock-based awards	23,034	[2]	15,576	[2]
Weighted-average common and potential common shares for diluted EPS	7,551,785		7,643,267
Basic EPS	$ 0.76		$ 0.74
Diluted EPS	$ 0.75		$ 0.74

[1] (1) Represents dividends paid and undistributed earnings allocated to nonvested stock-based awards that contain non-forfeitable rights to dividends.

[2] (2) Represents the effect of the assumed exercise of stock options, vesting of restricted shares, vesting of restricted stock units, and vesting of LTIP awards that have met the performance criteria, as applicable, utilizing the treasury stock method.