NET INCOME (LOSS) PER COMMON SHARE (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Numerator for basic earnings (loss) per share:
Net income (loss)	$ (2,726)	$ 5,395	$ (10,265)	$ 1,059
Preferred dividends	13	99	38	301
Net income (loss) available to common shareholders	(2,739)	5,296	(10,303)	758
Net income (loss) available to common shareholders	(2,739)	5,296	(10,303)	758
Preferred dividends		99		301
Interest expense on convertible debt		93		261
Net income (loss) for diluted earnings (loss) per share	$ (2,739)	$ 5,488	$ (10,303)	$ 1,320
Denominator for basic earnings (loss) per share - weighted-average shares outstanding	70,308,374	26,328,062	68,991,196	25,816,120
Effect of dilutive securities		30,838,150		33,177,845
Denominator for diluted earnings (loss) per share - weighted-average shares outstanding	70,308,374	57,166,212	68,991,196	58,993,965
Net income (loss)	$ (0.04)	$ 0.2	$ (0.15)	$ 0.04
Preferred dividends	$ 0.00	$ 0.00	$ 0.00	$ (0.01)
Net income (loss) available to common shareholders	$ (0.04)	$ 0.2	$ (0.15)	$ 0.03
Net income (loss)	$ (0.04)	$ 0.1	$ (0.15)	$ 0.02