SHAREHOLDERS' EQUITY, EXERCISE PRICE RANGE AND TREASURY STOCK (Details) (USD $)	12 Months Ended
	Dec. 31, 2013 Transaction	Dec. 31, 2012 Transaction	Dec. 31, 2011 Transaction
Equity, Class of Treasury Stock [Line Items]
Number of separate transactions	0	41	25
Shares repurchased (in shares)	0	37,787	28,426
Cost of shares retired	$ 0	$ 622,000	$ 479,000
Remaining authorized repurchase amount	$ 891,000
Minimum [Member]
Equity, Class of Treasury Stock [Line Items]
Average cost per share (in dollars per share)	$ 0	$ 15.75	$ 15.02
Maximum [Member]
Equity, Class of Treasury Stock [Line Items]
Average cost per share (in dollars per share)	$ 0	$ 19.00	$ 19.00
Range 8.74 to 10.92 [Member]
Exercise Price Range [Line Items]
Exercise price range, lower range limit (in dollars per share)	$ 8.74
Exercise price range, upper range limit (in dollars per share)	$ 10.92
Number of Options Outstanding, Ending Balance (in shares)	10,000
Options Outstanding, Weighted Average Remaining Contractual Life	0 years 2 months 12 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 10.75
Options Exercisable, Number of Options Exercisable at end of Period (in shares)	10,000
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 10.75
Range 10.93 to 13.11 [Member]
Exercise Price Range [Line Items]
Exercise price range, lower range limit (in dollars per share)	$ 10.93
Exercise price range, upper range limit (in dollars per share)	$ 13.11
Number of Options Outstanding, Ending Balance (in shares)	6,667
Options Outstanding, Weighted Average Remaining Contractual Life	1 year 9 months 18 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 11.50
Options Exercisable, Number of Options Exercisable at end of Period (in shares)	6,667
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 11.50
Range 13.12 to 15.29 [Member]
Exercise Price Range [Line Items]
Exercise price range, lower range limit (in dollars per share)	$ 13.12
Exercise price range, upper range limit (in dollars per share)	$ 15.29
Number of Options Outstanding, Ending Balance (in shares)	21,000
Options Outstanding, Weighted Average Remaining Contractual Life	1 year 1 month 6 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 15.22
Options Exercisable, Number of Options Exercisable at end of Period (in shares)	8,000
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 15.22
Range 15.30 to 17.48 [Member]
Exercise Price Range [Line Items]
Exercise price range, lower range limit (in dollars per share)	$ 15.30
Exercise price range, upper range limit (in dollars per share)	$ 17.48
Number of Options Outstanding, Ending Balance (in shares)	106,000
Options Outstanding, Weighted Average Remaining Contractual Life	5 years 6 months
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 16.87
Options Exercisable, Number of Options Exercisable at end of Period (in shares)	27,002
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 16.42
Range 17.49 to 19.66 [Member]
Exercise Price Range [Line Items]
Exercise price range, lower range limit (in dollars per share)	$ 17.49
Exercise price range, upper range limit (in dollars per share)	$ 19.66
Number of Options Outstanding, Ending Balance (in shares)	132,000
Options Outstanding, Weighted Average Remaining Contractual Life	5 years 4 months 24 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 18.32
Options Exercisable, Number of Options Exercisable at end of Period (in shares)	55,333
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 18.47
Range 19.67 to 21.85 [Member]
Exercise Price Range [Line Items]
Exercise price range, lower range limit (in dollars per share)	$ 19.67
Exercise price range, upper range limit (in dollars per share)	$ 21.85
Number of Options Outstanding, Ending Balance (in shares)	207,166
Options Outstanding, Weighted Average Remaining Contractual Life	2 years 8 months 12 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 20.34
Options Exercisable, Number of Options Exercisable at end of Period (in shares)	169,167
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 20.47
Range 8.74 to 21.85 [Member]
Exercise Price Range [Line Items]
Exercise price range, lower range limit (in dollars per share)	$ 8.74
Exercise price range, upper range limit (in dollars per share)	$ 21.85
Number of Options Outstanding, Ending Balance (in shares)	482,833
Options Outstanding, Weighted Average Remaining Contractual Life	3 years 10 months 24 days
Options Outstanding, Weighted Average Exercise Price (in dollars per share)	$ 18.48
Options Exercisable, Number of Options Exercisable at end of Period (in shares)	276,169
Options Exercisable, Weighted Average Exercise Price (in dollars per share)	$ 18.95