Accounts Payable and Accured Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Employee-related Liabilities, Current	$ 10,492	$ 18,349
Accrued Royalties, Current	10,610	10,795
Accrued Expenses Facilities	1,919	2,229
Accrued Legal Fees, Current	2,170	962
Accounts Payable, Current	3,665	1,877
Liability for Treasury Shares	0	2,018
Accrued Expense Linkage	1,460	1,653
Other Liabilities, Current	8,059	8,188
Accounts Payable and Accrued Liabilities	$ 38,375	$ 46,071