STOCK-BASED COMPENSATION (Details 2) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Stock-based compensation expense recorded during period	$ 408,750	$ 453,605	$ 1,034,624	$ 1,281,688
Total unrecognized compensation expense remaining	$ 3,764,916	$ 8,481,563	$ 3,764,916	$ 8,481,563
Remaining average recognition period (in years)	2 years 3 months 18 days	2 years 6 months	2 years 3 months 18 days	2 years 6 months