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Balance Sheet Accounts and Supplemental Disclosures (Tables) | 9 Months Ended
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Sep. 30, 2019
Balance Sheets Accounts And Supplemental Disclosures [Abstract] |
Schedule of Property and Equipment, Net | Property and equipment, net consisted of the following (in thousands):
|  | Estimated Useful Life (in years) |  | September 30, 2019 |  |  | December 31, 2018 |
Office equipment |  | 3-7 |  | $ | 1,097 |  |  | $ | 918 |
Computer equipment |  | 5 |  |  | 112 |  |  |  | 15 |
Software |  | 3 |  |  | 78 |  |  |  | 50 |
Lab equipment |  | 2-5 |  |  | 2,530 |  |  |  | 1,070 |
Leasehold improvements |  | 6-7 |  |  | 2,170 |  |  |  | 1,243 |
Construction in process |  | N/A |  |  | 68 |  |  |  | 194 |
Total property and equipment |  |  |  |  | 6,055 |  |  |  | 3,490 |
Less: accumulated depreciation |  |  |  |  | 922 |  |  |  | 297 |
Property and equipment, net |  |  |  | $ | 5,133 |  |  | $ | 3,193 |
Schedule of Accrued Expenses | Accrued expenses consisted of the following (in thousands):
|  | As of |
|  | September 30, 2019 |  |  | December 31, 2018 |
Accrued compensation |  | $ | 6,365 |  |  | $ | 4,102 |
Operating lease liabilities |  |  | 2,291 |  |  |  | — |
Accrued professional service fees |  |  | 2,059 |  |  |  | 2,697 |
Accrued other |  |  | 728 |  |  |  | 769 |
Total accrued expenses |  | $ | 11,443 |  |  | $ | 7,568 |

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- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + 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(13)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 + Details
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