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ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Tables) | 12 Months Ended
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Dec. 31, 2018
Payables and Accruals [Abstract] |
Accrued expenses | Accrued expenses at December 31, 2018 and 2017 are as follows:
|  | 2018 |  | 2017
Accrued expenses |  | $ | 1,583 |  | $ | 1,122
Accrued compensation |  |  | 118 |  |  | 126
Accrued interest |  |  | 239 |  |  | —
Other current liabilities | Other current liabilities at December 31, 2018 and 2017 are as follows:
|  | 2018 |  | 2017
Obligation to issue common shares |  | $ | — |  | $ | 1,897
Liability related to equity purchase agreement |  |  | 460 |  |  | —
Liability for settlement of equity instrument |  |  | 1,450 |  |  | 1,085
|  | $ | 1,910 |  | $ | 2,982

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