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STOCK-BASED COMPENSATION (Details 2) (USD $)	3 Months Ended
STOCK-BASED COMPENSATION (Details 2) (USD $)	Mar. 31, 2013	Mar. 31, 2012
Stock-based compensation expense recorded during period	$ 625,874	$ 828,084
Total unrecognized compensation expense remaining	$ 4,038,554	$ 8,935,167
Remaining average recognition period (in years)	2 years 4 months 24 days	2 years 8 months 12 days

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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