STOCK TRANSACTIONS (Details) (USD $)	1 Months Ended	9 Months Ended			3 Months Ended			1 Months Ended		1 Months Ended	9 Months Ended
	Feb. 29, 2012	Sep. 30, 2012	Sep. 30, 2011	Feb. 22, 2012	Sep. 30, 2012 Performance-based Awards [Member]	Jun. 30, 2012 Performance-based Awards [Member]	Jul. 16, 2012 Stock Compensation Plan and Restricted Stock [Member]	Jul. 31, 2012 Stock Compensation Plan and Restricted Stock [Member] Executive Officer [Member] Month Installment	Jul. 16, 2012 Stock Compensation Plan and Restricted Stock [Member] Executive Officer [Member]	Jul. 31, 2012 Stock Compensation Plan and Restricted Stock [Member] Employees [Member] Installment	Sep. 30, 2012 Certain Employees and Non-employees [Member]
Class of Stock [Line Items]
Underwritten public offering, common stock issued and sold				5,175,000
Underwritten public offering, common stock price per share				$ 5.25
Shares of common stock issued, lock up period								24
Underwritten public offering, net proceeds from issuance	$ 25,388,000
Underwritten public offering, commissions and issuance costs	1,780,000
Exercise of options granted to employees and non-employees (in shares)											1,156,184
Cash proceeds from exercise of options		1,096,000	263,000								1,137,000
Common stock issued in connection with exercise of options											1,156,184
Shares of common stock issued, vesting period					3 years	3 years		4 years		3 years
Share based compensation		6,065,000	730,000		3,900,000	3,900,000
Shares of common stock approved for grant									1,500,000
Shares of common stock issued								1,100,000		400,000
Number of installments for vesting of stock								16		12
Fair value of common stock at grant date							$ 8,580,000