Balance Sheet Components - Components of Property and Equipment, Net (Details) - USD ($) $ in Thousands |
Mar. 31, 2018 |
Dec. 31, 2017 |
---|---|---|
Property Plant And Equipment [Line Items] | ||
Total property and equipment, gross | $ 10,474 | $ 9,286 |
Less: accumulated depreciation and amortization | (3,614) | (3,065) |
Total property and equipment, net | 6,860 | 6,221 |
Laboratory and Manufacturing Equipment | ||
Property Plant And Equipment [Line Items] | ||
Total property and equipment, gross | 2,236 | 1,994 |
Computer Equipment and Software | ||
Property Plant And Equipment [Line Items] | ||
Total property and equipment, gross | 1,064 | 1,015 |
Furniture and Fixtures | ||
Property Plant And Equipment [Line Items] | ||
Total property and equipment, gross | 953 | 953 |
Leasehold Improvements | ||
Property Plant And Equipment [Line Items] | ||
Total property and equipment, gross | 726 | 726 |
Internal-Use Software | ||
Property Plant And Equipment [Line Items] | ||
Total property and equipment, gross | $ 5,495 | $ 4,598 |