STOCK-BASED COMPENSATION PLANS (Details 2) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted Average Fair Value, Granted	$ 2.93	$ 2.77	$ 3.68
Non Vested Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares, Outstanding at beginning of year	679,785	558,929	485,978
Number of Options, Granted	331,600	333,300	253,400
Number of Options, Vested	(243,303)	(207,044)	(173,824)
Number of Options, Forfeited	(16,500)	(5,400)	(6,625)
Shares, Outstanding at end of year	751,582	679,785	558,929
Weighted Average Exercise Price, Outstanding at beginning of year	$ 26.14	$ 23.86	$ 24.46
Weighted Average Exercise Price, Granted	$ 27.04	$ 28.50	$ 23.53
Weighted Average Exercise Price, Vested	$ 25.54	$ 23.83	$ 25.05
Weighted Average Exercise Price, Forfeited	$ 25.98	$ 23.95	$ 24.26
Weighted Average Exercise Price, Outstanding at end of year	$ 26.74	$ 26.14	$ 23.86
Weighted Average Fair Value, Outstanding at beginning of year	$ 3.46	$ 4.23	$ 4.70
Weighted Average Fair Value, Granted	$ 2.93	$ 2.77	$ 3.68
Weighted Average Fair Value, Vested	$ 3.80	$ 4.42	$ 4.73
Weighted Average Fair Value, Forfeited	$ 3.44	$ 4.28	$ 4.60
Weighted Average Fair Value, Outstanding at end of the year	$ 3.12	$ 3.46	$ 4.23

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Gross number of share options (or share units) granted during the period.

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (d)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Number of non-vested options outstanding.

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Number of non-vested options forfeited.

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Weighted average grant-date fair value of non-vested options forfeited.

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Weighted average grant-date fair value of non-vested options outstanding.

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Number of options vested.

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Weighted average grant-date fair value of options vested.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Weighted average exercise price of non-vested options forfeited.

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- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the non-vested stock option plan.

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Weighted average exercise price of options vested.

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