Accounts Payable and Accrued Expenses / Costs (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
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