ACCOUNTING FOR STOCK BASED COMPENSATION (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding - beginning of period (in shares)	2,456,137	2,893,760
Options granted (in shares)	0	0
Options exercised (in shares)	(157,670)	(61,247)
Options forfeited (in shares)	(3,095)	0
Options outstanding - end of period (in shares)	2,295,372	2,832,513
Stock Options, Weighted Average Exercise Price [Roll Forward]
Weighted average exercise price of exercisable options at the end of period (in dollars per share)	$ 15.98	$ 15.43
Options, Additional Disclosures [Abstract]
Intrinsic value of options exercised	$ 150	$ 279
Compensation expense recognized	73	85
Remaining unrecognized compensation expense	261	459
Intrinsic value of outstanding options at period end	1,070	2,291
Intrinsic value of vested options at period end	841	1,856
Restricted stock awards, additional Disclosures [Abstract]
Compensation recorded to expense	73	85
Restricted Stock Units (RSUs) [Member]
Options, Additional Disclosures [Abstract]
Compensation expense recognized	526	438
Restricted stock awards, Nonvested, Number of Shares [Roll Forward]
Unvested allocated shares - beginning of period	328,003	324,454
Shares granted	0	0
Shares vested	(6,855)	0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period	0	0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number, Ending Balance	321,148	324,454
Restricted stock awards, additional Disclosures [Abstract]
Compensation recorded to expense	$ 526	$ 438

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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-Name Accounting Standards Codification

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As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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The total accumulated difference between fair values of underlying shares on dates of exercise and exercise price on options which were exercised (or share units converted) into shares during the reporting period under the plan.

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For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

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

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of options outstanding.

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The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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Number of share options (or share units) exercised during the current period.

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