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v3.19.2

Balance Sheet Components (Tables) | 6 Months Ended
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Jun. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Property and Equipment, Net | Property and Equipment, net (in thousands):
| June 30, |  | December 31,
| 2019 |  | 2018
Machinery and equipment | $ | 4,097 |  |  | $ | 3,785 |
Construction in progress | 854 |  |  | 730 |
Computer and office equipment | 440 |  |  | 407 |
Leasehold improvements | 497 |  |  | 448 |
Furniture and fixtures | 151 |  |  | 148 |
| 6,039 |  |  | 5,518 |
Less: Accumulated depreciation and amortization | (3,507 | ) |  | (3,364 | )
| $ | 2,532 |  |  | $ | 2,154 |
Schedule of Accrued Liabilities and Other | Accrued Liabilities and Other (in thousands):
| June 30, |  | December 31,
| 2019 |  | 2018
Accrued compensation and related expenses | $ | 4,987 |  |  | $ | 5,425 |
Accrued interest | 1,163 |  |  | — |
Accrued professional services | 421 |  |  | 583 |
Sales tax payable | 349 |  |  | 388 |
Liability for early exercise of unvested stock options | 210 |  |  | 331 |
Others | 339 |  |  | 133 |
| $ | 7,469 |  |  | $ | 6,860 |

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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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