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ACCRUED LIABILITIES AND OTHER CURRENT LIABILITIES (Details) (USD $)	3 Months Ended	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2012	Dec. 31, 2011
ACCRUED LIABILITIES AND OTHER CURRENT LIABILITIES
Accrued research and development	$ 2,923,000	$ 2,923,000	$ 3,471,000
Other current liabilities	1,251,000	1,251,000	1,193,000
Total	4,174,000	4,174,000	4,664,000
Reversals of pre-clinical expense accruals	$ 300,000	$ 400,000

Carrying value as of the balance sheet date of obligations incurred through that date and payable arising from transactions not otherwise specified in the taxonomy. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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