STOCK-BASED COMPENSATION PLAN AND WARRANTS, PRICE RANGE (Details) (USD $)	3 Months Ended
	Mar. 31, 2014
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options outstanding (in shares)	11,348,062
Weighted average remaining contractual life	2 years 8 months 12 days
Weighted average exercise price (in dollars per share)	$ 1.07
Options exercisable (in shares)	9,964,837
$0.01 - $1.50 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of exercise prices lower range (in dollars per share)	$ 0.01
Range of exercise prices upper range (in dollars per share)	$ 1.50
Options outstanding (in shares)	8,874,527
Weighted average remaining contractual life	2 years 4 months 24 days
Weighted average exercise price (in dollars per share)	$ 0.77
Options exercisable (in shares)	7,491,302
$1.51 - $3.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of exercise prices lower range (in dollars per share)	$ 1.51
Range of exercise prices upper range (in dollars per share)	$ 3.00
Options outstanding (in shares)	2,348,535
Weighted average remaining contractual life	3 years 6 months
Weighted average exercise price (in dollars per share)	$ 1.67
Options exercisable (in shares)	2,348,535
$3.01 - $5.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Range of exercise prices lower range (in dollars per share)	$ 3.01
Range of exercise prices upper range (in dollars per share)	$ 5.00
Options outstanding (in shares)	125,000
Weighted average remaining contractual life	3 years 7 months 6 days
Weighted average exercise price (in dollars per share)	$ 3.11
Options exercisable (in shares)	125,000