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Accounts Payable and Accrued Expenses | 12 Months Ended
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Dec. 31, 2015
Accounts Payable and Accrued Liabilities, Current [Abstract] |
Accounts Payable and Accrued Expenses / Costs | ACCOUNTS PAYABLE AND ACCRUED EXPENSES Accounts payable and accrued expenses consist of the following at December 31, 2015 and 2014 (in thousands):
|  | 2015 |  | 2014
Payroll and other employee benefits |  | $ | 576 |  |  | $ | 1,481 |
Accrued vacation |  | 701 |  |  | 806 |
Accrued legal expenses - patent |  | 10,135 |  |  | 8,410 |
Accrued attorney's fees |  | — |  |  | 1,548 |
Foreign taxes payable (1) |  | 3,960 |  |  | — |
Accrued consulting and other professional fees |  | 1,592 |  |  | 1,530 |
Other accrued liabilities |  | 383 |  |  | 1,085 |
|  | $ | 17,347 |  |  | $ | 14,860 |
(1) - Included in "Accounts Payable and Accrued Expenses/Patent Costs" line item on the consolidated statement of cash flows included elsewhere herein.

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- Definition The entire disclosure for accounts payable and accrued liabilities at the end of the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(a),20,24) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Subparagraph a -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 24 -Article 5 + Details
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