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v3.19.3

Leases (Details) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Sep. 30, 2019 USD ($) | Sep. 30, 2018 USD ($) | Sep. 30, 2019 USD ($) | Sep. 30, 2018 USD ($) | Dec. 31, 2017 ft² | Dec. 31, 2018 USD ($)
Leases |  |  |  |  |  |
Operating lease, option to extend |  |  |  |  | true |
Operating lease, option to terminate |  |  |  |  | true |
Future operating lease payments |  |  |  |  |  |
2019 (remaining three months) | $ 430 |  | $ 430 |  |  |
2020 | 1,736 |  | 1,736 |  |  |
2021 | 859 |  | 859 |  |  |
2022 | 50 |  | 50 |  |  |
Total undiscounted lease payments | 3,075 |  | 3,075 |  |  |
Less: Present value adjustment | (162) |  | (162) |  |  |
Total operating lease liabilities | 2,913 |  | 2,913 |  |  |
Less: Current portion of operating lease liabilities | (1,606) |  | (1,606) |  |  |
Total operating lease liabilities, net of current portion | $ 1,307 |  | $ 1,307 |  |  |
Minimum rental commitments |  |  |  |  |  |
2019 |  |  |  |  |  | $ 1,645
2020 |  |  |  |  |  | 1,701
2021 |  |  |  |  |  | 846
2022 |  |  |  |  |  | 47
Total minimum lease payments |  |  |  |  |  | $ 4,239
Other lease information |  |  |  |  |  |
Operating lease weighted-average remaining lease term (years) | 1 year 10 months 21 days |  | 1 year 10 months 21 days |  |  |
Operating lease weighted-average discount rate | 6.01% |  | 6.01% |  |  |
Operating lease costs | $ 401 | $ 386 | $ 1,200 | $ 1,200 |  |
Previous Headquarters |  |  |  |  |  |
Leases |  |  |  |  |  |
Area of operating lease (in sq feet) | ft² |  |  |  |  | 27,974 |
Office and Lab Space |  |  |  |  |  |
Leases |  |  |  |  |  |
Operating lease renewal term (in years) | 5 years |  | 5 years |  |  |
Arizona manufacturing facility |  |  |  |  |  |
Leases |  |  |  |  |  |
Period to cancel lease upon notice |  |  | 24 months |  |  |

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