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Balance Sheet Details | 12 Months Ended
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Dec. 31, 2017
Organization Consolidation And Presentation Of Financial Statements [Abstract] |
Balance Sheet Details | 5. Balance Sheet Details Inventory consisted of the following (in thousands):
|  | December 31, |
|  | 2017 |  |  | 2016 |
Finished goods |  | $ | 1,164 |  |  | $ | 2,355 |
Raw material |  |  | 4,084 |  |  |  | 1,820 |
|  | $ | 5,248 |  |  | $ | 4,175 |
Property and equipment, net, consisted of the following (in thousands):
|  | December 31, |
|  | 2017 |  |  | 2016 |
Machinery and equipment |  | $ | 1,076 |  |  | $ | 1,087 |
Computers and software |  |  | 2,868 |  |  |  | 2,718 |
Leasehold improvements |  |  | 1,642 |  |  |  | 1,317 |
Furniture and fixtures |  |  | 1,305 |  |  |  | 1,141 |
Construction-in-process |  |  | — |  |  |  | 226 |
|  |  | 6,891 |  |  |  | 6,489 |
Accumulated depreciation |  |  | (4,229 | ) |  |  | (3,408 | )
|  | $ | 2,662 |  |  | $ | 3,081 |
Depreciation of property and equipment was $1.2 million, $0.8 million, and $0.6 million for the years ended December 31, 2017, 2016, and 2015, respectively. During 2017, 2016 and 2015, the Company retired $0.4 million, $0.2 million, and $0.1 million, respectively, of fully depreciated property and equipment. Accrued liabilities consisted of the following (in thousands):
|  | December 31, |
|  | 2017 |  |  | 2016 |
Accrued compensation and benefits |  | $ | 15,260 |  |  | $ | 14,382 |
Accrued consulting and professional fees |  |  | 9,395 |  |  |  | 9,488 |
Accrued research and development services |  |  | 9,487 |  |  |  | 8,551 |
Accrued sales allowances |  |  | 3,591 |  |  |  | 1,999 |
Other |  |  | 2,511 |  |  |  | 1,609 |
|  | $ | 40,244 |  |  | $ | 36,029 |

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- Definition The entire disclosure for supplemental balance sheet disclosures, including descriptions and amounts for assets, liabilities, and equity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -URI http://asc.fasb.org/topic&trid=2122208 + Details
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