SHARE-BASED COMPENSATION - Options Activity (Details) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Options activity [Roll Forward]
Options beginning	742,550
Options granted	0
Options exercised	(85,250)
Options forfeited	(3,625)
Options expired	(3,125)
Options ending	650,550
Weighted average exercise price - beginning	$ 2.39
Weighted average exercise price - options exercised	$ 1.52
Weighted average exercise price - options forfeited	$ 1.34
Weighted average exercise price - options expired	$ 9.57
Weighted average exercise price - ending	$ 2.47
Weighted Average Remaining Contractual Term (Years) Options	5 years 9 months 18 days
Intrinsic Value Options	$ 3,846,225
Options vested and expected to vest	650,364
Options vested and exercisable	645,550
Weighted average exercise price options vested and expected to vest	$ 2.47
Weighted average exercise price options vested and exerciable	$ 2.45
Weighted average remaining contractual period (Years) options vested and expected to vest	5 years 9 months 18 days
Weighted average remaining contractual period (years) options vested and exercisable	5 years 9 months 18 days
Intrinsic value options vested and expected to vest	3,845,860
Intrinsic value options vested and exercisable	3,835,129
Weighted average remaining recognition period in years	6 months
Unamortized compensation expense, net of estimated forfeitures	71,570
Cash received from exercise price of options exercised	$ 130,000	$ 54,000