SHARE BASED COMPENSATION, Allocated Compensation expense (Details) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Stock Options [Member]
Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	$ 37,897	$ 143,438
Stock Options [Member] | Research and Development [Member]
Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	6,280	53,330
Stock Options [Member] | Selling, General and Administrative [Member]
Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	31,617	90,108
Restricted Stock [Member]
Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	8,297,000	27,688,000
Restricted Stock [Member] | Research and Development [Member]
Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	3,762,000	16,205,000
Restricted Stock [Member] | Selling, General and Administrative [Member]
Allocation of Recognized Period Costs [Line Items]
Share-based compensation expense	$ 4,535,000	$ 11,483,000