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Accounts Payable and Accrued Expenses | 12 Months Ended
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Dec. 31, 2018
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, 2018 and 2017 (in thousands):
|  | 2018 |  | 2017
Payroll and other employee benefits |  | $ | 205 |  |  | $ | 465 |
Accrued vacation |  | 144 |  |  | 294 |
Accrued legal expenses - patent |  | 5,974 |  |  | 5,479 |
Foreign taxes payable |  | 374 |  |  | 15 |
Accrued consulting and other professional fees |  | 1,241 |  |  | 1,364 |
Other accrued liabilities |  | 409 |  |  | 339 |
|  | $ | 8,347 |  |  | $ | 7,956 |

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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://fasb.org/us-gaap/role/ref/legacyRef -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 + Details
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