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Accounts Payable and Accrued Expenses / Costs (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2012 | Dec. 31, 2011
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ACCOUNTS PAYABLE AND ACCRUED EXPENSES / COSTS [Abstract] |  |
Accounts payable | $ 557 | $ 354
Payroll and other employee benefits | 1,815 | 909
Accrued vacation | 703 | 693
Accrued legal expenses - patent | 3,990 | 1,765
Accrued consulting and other professional fees | 1,510 | 1,286
Accrued patent acquisition related payments | 250 | 900
Accrued distribution to noncontrolling interest | 504 | 0
Accrued taxes payable | 85 | 583
Other accrued liabilities | 71 | 135
Accounts payable and accrued expenses / costs | $ 9,485 | $ 6,625

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