Commitments and Contingencies

12 Months Ended

Dec. 31, 2019

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

On June 24, 2014, the Company entered into a lease agreement for completed office and laboratory space located in San Diego, California. The office space under the lease is the Company's corporate headquarters. The lease commenced in two phases (in July 2014 and March 2015) at a combined total initial monthly rent of $24,100 per month. The leased property is subject to a 3% annual rent increase following availability. In addition to such base monthly rent, the Company is obligated to pay certain customary amounts for its share of operating expenses and facility amenities. The original lease provided for expiration on January 31, 2018. On March 23, 2017, the Company entered into a First Amendment to Lease Agreement to amend the original lease agreement and to extend the term of the original lease for one year through January 31, 2019. On April 5, 2018, the Company entered into a Second Amendment to Lease Agreement to extend the lease term through January 31, 2020. On August 2, 2018, the Company entered into a Third Amendment to Lease Agreement to expand the size of the existing space for an additional base rent of $4,000 per month. On October 30, 2019, the Company entered into a Fourth Amendment to Lease Agreement to extend the lease term to approximately October 1, 2020, and to expand the size of the existing space for no additional base rent. All other terms and covenants from the original lease agreement remain unchanged.

The Company's building lease is considered to be an operating lease. The lease agreement indicates the interest rate applicable to the lease is 12%, therefore the Company used a discount rate of 12% to calculate the value of its lease obligations. The Company re-measured the operating right-of-use asset and operating lease liability due to the Fourth Amendment to Lease Agreement. As of December 31, 2019, the consolidated balance sheet includes a $0.6 million operating right-of-use asset within other long-term assets, and a $0.7 million operating lease liability in deferred revenue and other current liabilities. For the year ended December 31, 2019, the Company recorded $0.4 million in operating lease cost, and the building lease has a remaining lease term of under one year from December 31, 2019. As of December 31, 2019, remaining lease payments on an undiscounted basis are $0.3 million for 2020.     

On August 22, 2019, the Company entered into a new lease agreement for office and laboratory space located in San Diego, California, for the Company's future corporate headquarters. The commencement date of this lease is expected to be September 21, 2020 and will expire October 1, 2030, unless terminated earlier. The base rent for the Company under this lease will be approximately $3.8 million for the first year of the lease, which amount will increase by 3% per year over the lease term. The Company has also received customary incentives from the landlord for tenant improvements and rent abatement periods, which effectively reduce the total lease payments owed for the lease. As of December 31, 2019, the Company had not taken control of the space and the lease term had not commenced. Accordingly, no right-of-use asset or lease liability related to the lease has been recorded.