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Accrued Expenses | 9 Months Ended | 12 Months Ended
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Sep. 30, 2019 | Dec. 31, 2018
Payables And Accruals [Abstract] |  |
Accrued Expenses |
(6) | ACCRUED EXPENSES
Accrued expenses consist of the following:
(in thousands) |  | September 30, 2019 |  |  | December 31, 2018 |
Compensation, excluding taxes |  | $ | 3,274 |  |  | $ | 1,785 |
Clinical trial expenses |  |  | 2,590 |  |  |  | 4,530 |
Interest payable |  |  | 33 |  |  |  | 402 |
Other1 |  |  | 640 |  |  |  | 1,247 |
Total accrued expenses |  | $ | 6,537 |  |  | $ | 7,964 |
| 1 | Other consists of various accrued expenses, with no individual item accounting for more than 5% of current liabilities at September 30, 2019 and December 31, 2018.
(8) | CURRENT ACCRUED EXPENSES
Current accrued expenses include the following:
(in thousands) |  | December 31, 2018 |  |  | December 31, 2017 |
Clinical trial expenses |  | $ | 4,530 |  |  | $ | 869 |
Compensation, excluding taxes |  |  | 1,785 |  |  |  | 1,124 |
Professional fees |  |  | 190 |  |  |  | 221 |
Short-term portion of lease restructuring |  |  | 184 |  |  |  | 209 |
Other1 |  |  | 1,275 |  |  |  | 985 |
Total accrued expenses |  | $ | 7,964 |  |  | $ | 3,408 |
| 1 | Other consists of various accrued expenses, with no individual item accounting for more than 5% of current liabilities at December 31, 2018 and 2017.

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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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