STOCK BASED COMPENSATION (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Stockholders' equity
Compensation expense related to stock options and restricted stock awards	$ 0.6	$ 0.5	$ 1.7	$ 1.1
Stock options
Weighted-average assumptions used to value stock options
Dividend yield (as a percent)			0.00%	0.00%
Weighted average volatility (as a percent)			60.72%	52.80%
Risk-free interest rate (as a percent)			1.90%	1.00%
Expected life			3 years 6 months	3 years 6 months
Number of Options
Outstanding at the beginning of the period (in shares)	3,618,126
Granted (in shares)	293,000
Forfeited or expired (in shares)	(280,067)
Outstanding at the end of the period (in shares)	3,631,059		3,631,059
Exercisable at the end of the period (in shares)	643,927		643,927
Weighted Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$ 2.85
Granted (in dollars per share)	0.76
Forfeited or expired (in dollars per share)	2.94
Outstanding at the end of the period (in dollars per share)	2.67		$ 2.67
Exercisable at the end of the period (in dollars per share)	$ 3.48		$ 3.48
Weighted Average Remaining Term (in years)
Outstanding at the end of the period	4 years 1 month 6 days
Exercisable at the end of the period	2 years 4 months 2 days
Additional disclosures
Total intrinsic value of options exercised			$ 0.0	$ 1.0
Total unrecognized stock-based compensation expense	$ 2.9		$ 2.9
Weighted Average Fair Value
Weighted average period over which unrecognized compensation cost is expected to be recognized			2 years
Restricted Shares
Shares
Outstanding at the beginning of the period (in shares)			689,370
Granted (in shares)			521,322
Vested (in shares)			(697,630)
Forfeited (in shares)			(27,817)
Outstanding at the end of the period (in shares)	485,245		485,245
Weighted Average Fair Value
Outstanding at the beginning of the period (in dollars per share)			$ 2.87
Granted (in dollars per share)			1.11
Vested (in dollars per share)			1.79
Forfeited (in dollars per share)			3.36
Outstanding at the end of the period (in dollars per share)	$ 2.50		$ 2.50
Vesting period			3 years
Total unrecognized stock-based compensation expense	$ 0.9		$ 0.9
Weighted average period over which unrecognized compensation cost is expected to be recognized			1 year 8 months 12 days