STOCK BASED COMPENSATION (Details) (USD $)	3 Months Ended		6 Months Ended					6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012 Stock Options	Jun. 30, 2011 Stock Options	Mar. 31, 2012 Stock Options	Jun. 30, 2012 Restricted Shares
Stock-based compensation
Compensation expense related to stock options and restricted stock awards	$ 500,000	$ 400,000	$ 800,000	$ 700,000
Assumptions used to value stock options
Dividend yield (as a percent)					0.00%	0.00%
Expected volatility (as a percent)					73.50%	74.60%
Risk-free interest rate (as a percent)					0.50%	1.40%
Expected life					3 years 6 months	3 years 6 months
Number of Options
Outstanding at the beginning of the period (in shares)							2,732,763
Granted (in shares)					60,000
Forfeited or expired (in shares)					(81,501)
Outstanding at the end of the period (in shares)					2,711,262		2,732,763
Exercisable at the end of the period (in shares)					2,217,968
Weighted Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)							$ 3.15
Granted (in dollars per share)					$ 2.91
Forfeited or expired (in dollars per share)					$ 11.09
Outstanding at the end of the period (in dollars per share)					$ 2.90		$ 3.15
Exercisable at the end of the period (in dollars per share)					$ 2.93
Weighted Average Remaining Term (in years)
Outstanding at the end of the period					2 years 1 month 6 days
Exercisable at the end of the period					1 year 10 months 10 days
Aggregate Intrinsic Value
Outstanding at the end of the period					2,089,000
Exercisable at the end of the period					2,089,000
Additional disclosures
Total intrinsic value of options exercised					107,000	385,000
Total unrecognized stock-based compensation expense					600,000
Shares
Outstanding at the beginning of the period (in shares)								615,731
Granted (in shares)								705,965
Vested (in shares)								(207,878)
Forfeited (in shares)								(2,120)
Outstanding at the end of the period (in shares)								1,111,698
Weighted Average Fair Value
Outstanding at the beginning of the period (in dollars per share)								$ 4.22
Granted (in dollars per share)								$ 2.91
Vested (in dollars per share)								$ 10.79
Forfeited (in dollars per share)								$ 4.22
Outstanding at the end of the period (in dollars per share)								$ 3.39
Vesting period								3 years
Total unrecognized stock-based compensation expense								$ 3,400,000
Weighted average period over which unrecognized stock-based compensation expense is expected to be recognized					1 year 3 months 18 days			2 years 3 months 18 days