STOCK-BASED COMPENSATION Restricted stock units (Details) (Restricted stock units, USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward]
Non-vested restricted stock (units) at January 1, weighted average grant date fair value	$ 5.18	$ 0.00	$ 0.00
Granted, weighted average grant date fair value	$ 5.13	$ 5.37	$ 5.76
Vested, weighted average grant date fair value	$ 5.13	$ 6.05	$ 5.76
Non-vested restricted stock (units) at December 31, weighted average grant date fair value	$ 5.18	$ 5.18	$ 0.00
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Unvested restricted stock (units) at January 1, number of shares of restricted stock (unit)	100,000	0	0
Granted, number of share of restricted stock (units)	76,023	127,376	25,521
Vested, number of share of restricted stock (units)	(76,023)	(27,376)	(25,521)
Unvested restricted stock (units) at December 31, number of shares of restricted stock (unit)	100,000	100,000	0
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized	$ 390	$ 166	$ 147

The weighted average fair value at grant date for nonvested equity-based awards issued 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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- Definition

The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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- Definition

The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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