ACCOUNTS PAYABLE AND ACCRUED LIABILITIES (Details) (USD $)	Jun. 30, 2012	Dec. 31, 2011
ACCOUNTS PAYABLE AND ACCRUED LIABILITIES
Trade accounts payable	$ 4,364,000	$ 3,923,000
Accrued license and royalty fees	468,000	542,000
Employee-related accruals	12,906,000	17,909,000
Accrued professional fees	1,997,000	1,509,000
Accrued contract research	133,000	133,000
Other liabilities	5,790,000	6,521,000
Total	25,658,000	30,537,000
Remaining obligation related to the QSR Settlement Amount	1,800,000	2,800,000
VAT payable by certain of the European entities	1,000,000	1,000,000
Other general operating liabilities	$ 3,000,000	$ 2,700,000