STOCK-BASED COMPENSATION Restricted stock (Details) (Restricted stock, USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Restricted stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average service period	1 year 9 months 24 days
Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized	$ 705
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), weighted average grant date fair value, At the Beginning of the Year	$ 3.00	$ 4.87
Granted, weighted average grant date fair value	$ 3.87	$ 0.00
Vested, weighted average grant date fair value	$ 5.75	$ 5.35
Forfeited, weighted average grant date fair value	$ 2.30	$ 4.59
Non-vested restricted stock (units), weighted average grant date fair value, At the End of the Period	$ 2.80	$ 4.73
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Non-vested restricted stock (units), number of shares of restricted stock (unit), At the Beginning of the Year	997,802	1,028,916
Granted, Number of share of restricted stock (units)	5,000	0
Vested, number of share of restricted stock (units)	(143,645)	(300,263)
Forfeited, number of share of restricted stock	(435,896)	(329,460)
Non-vested restricted stock (units), number of shares of restricted stock (unit), At the End of the Period	423,261	399,193