Quarterly report pursuant to sections 13 or 15(d)

8. FAIR VALUE MEASUREMENTS (Details 1)

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8. FAIR VALUE MEASUREMENTS (Details 1) (Level 3 [Member], USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Sep. 30, 2012
Level 3 [Member]
       
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]        
Beginning Balance $ 557 $ 1,842 $ 1,921 $ 1,921
Warrant exercises     (112) (112)
Adjustments to fair value for the period 900 (1,285) 33  
Ending Balance 6,495 557 1,842 6,495
July Offering 3,380     3,380
September Offering $ 1,658     $ 1,658