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Prepaid Expenses and Other Current Assets | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2017 | Dec. 31, 2016
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |  |
Prepaid Expenses and Other Current Assets |
(3) | Prepaid Expenses and Other Current Assets
Prepaid expenses and other current assets consist of the following:
(in thousands) |  | September 30, 2017 |  |  | December 31, 2016 |
Insurance premiums |  | $ | 61 |  |  | $ | 501 |
Taxes |  |  | 53 |  |  |  | — |
Security Deposit |  |  | 50 |  |  |  | 50 |
Other1 |  |  | 221 |  |  |  | 147 |
Total prepaid expenses and other current assets |  | $ | 385 |  |  | $ | 698 |
1 | Other consists of various prepaid expenses and other current assets, with no individual item accounting for more than 5% of prepaid expenses and other current assets at September 30, 2017 and December 31, 2016.
(5) | Prepaid Expenses and Other Current Assets
Prepaid expenses and other current assets include the following:
|  | December 31, |  |  | December 31, |
(in thousands) |  | 2016 |  |  | 2015 |
Insurance premiums |  | $ | 501 |  |  | $ | 625 |
Kits for clinical use |  |  | — |  |  |  | 162 |
Other |  |  | 197 |  |  |  | 173 |
Total prepaid expenses and other current assets |  | $ | 698 |  |  | $ | 960 |
Other consists of various prepaid expenses and other current assets, with no individual item accounting for more than 5% at December 31, 2016 and 2015.

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