Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies

Commitments and Contingencies
3 Months Ended
Mar. 31, 2021
Commitments and Contingencies Disclosure [Abstract]  
Commitments and Contingencies Commitments and Contingencies
Operating Leases
Our headquarters are located in Redwood City, California, where we occupy approximately 77,300 square feet of office and laboratory space in multiple buildings within the same business park of Metropolitan Life Insurance Company ("MetLife"). Our lease agreement with MetLife ("RWC Lease") includes approximately 28,200 square feet of space located at 200 and 220 Penobscot Drive, Redwood City, California (the “200/220 Penobscot Space”) and approximately 37,900 square feet of space located at 400 Penobscot Drive, Redwood City, California (the “400 Penobscot Space”) (the 200/220 Penobscot Space and the 400 Penobscot Space are collectively referred to as the “Penobscot Space”), and approximately 11,200 square feet of space located at 501 Chesapeake Drive, Redwood City, California (the “501 Chesapeake Space”).
Until the end of January 2020, we also leased approximately 29,900 square feet of space located at 101 Saginaw Drive, Redwood City, California (the “Saginaw Space”). During January 2020, we subleased approximately 26,500 square feet of the Saginaw Space to Minerva Surgical, Inc. The lease and sublease for the Saginaw Space both expired at the end of January 2020. During the period from February 1, 2020 through April 30, 2020, we subleased approximately 3,400 square feet at 101 Saginaw Drive from Minerva Surgical, Inc. The sublease expired at the end of April 2020.
We entered into the initial lease with MetLife for our facilities in Redwood City in 2004 and the RWC Lease has been amended multiple times since then to adjust the leased space and terms of the Lease. In February 2019, we entered into an Eighth Amendment to the Lease (the “Eighth Amendment”) with MetLife with respect to the Penobscot Space and the 501 Chesapeake Space to extend the term of the Lease for additional periods. Pursuant to the Eighth Amendment, the term of the lease of the Penobscot Space has been extended through May 2027. The lease term for the 501 Chesapeake Space has been extended to May 2029. We have one (1) option to extend the term of the lease for the Penobscot Space for five (5) years, and one (1) separate option to extend the term of the lease for the 501 Chesapeake Space for five (5) years.
We are required to restore certain areas of the Redwood City facilities that we are renting to their original form. We are expensing the asset retirement obligation over the terms of the respective leases. We review the estimated obligation each reporting period and make adjustments if our estimates change. We recorded asset retirement obligations of $0.2 million as of March 31, 2021 and December 31, 2020, which are included in other liabilities on the unaudited condensed consolidated balance sheets. Accretion expense related to our asset retirement obligations was nominal in the three months ended March 31, 2021 and 2020.
Pursuant to the terms of the RWC Lease, we exercised our right to deliver a letter of credit in lieu of a security deposit. The letter of credit is collateralized by deposit balances held by the bank in the amount of $1.1 million as of March 31, 2021 and December 31, 2020, and are recorded as non-current restricted cash on the unaudited condensed consolidated balance sheets.
Finance Leases
In December 2016, we entered into a three-year financing lease agreement with a third party supplier for the purchase of laboratory equipment that was partially financed through a finance lease of approximately $0.4 million. The lease became effective upon delivery of the equipment in February 2017, and term of the three-year lease was from February 2017 and expired in February 2020. This financing agreement was accounted for as a finance lease due to bargain purchase options at the end of the lease. In April 2017, we entered into a three-year financing lease agreement with a third-party supplier for the purchase of information technology equipment for approximately $0.3 million. The effective term of the three-year lease was from May 2017 and expired in April 2020.
Lease and other information
Lease costs, amounts included in measurement of lease obligations and other information related to non-cancellable operating leases and finance leases were as follows (in thousands):
Three months ended March 31,
  2021 2020
Finance lease amortization of right-of-use assets $ 26  $ 54 
Operating lease cost 1,032  1,068 
Short-term lease costs (1)
—  31 
Sublease income —  (55)
Total lease cost (2)
$ 1,058  $ 1,098 
(1) Short-term lease costs on leases with terms of over one month and less than one year.
(2) The Company had no variable lease costs.
Other information: Operating Leases
Weighted-average remaining lease term (in years) 5.2 years
Weighted-average discount rate 6.6  %

Three months ended March 31,
Cash paid: 2021 2020
Operating cash flows from operating leases $ 1,042  $ 354 
Financing cash flows from finance leases $ —  $ 51 
As of March 31, 2021, our maturity analysis of annual undiscounted cash flows of the non-cancellable operating leases are as follows (in thousands):
Years ending December 31, Operating Leases
2021 (remaining 9 months) $ 3,156 
2022 4,285 
2023 4,589 
2024 4,726 
2025 4,868 
Thereafter 8,627 
Total minimum lease payments 30,251 
Less: imputed interest (5,932)
Lease obligations $ 24,319 
Future Lease Commitment
In the first quarter of 2021, we entered into a lease agreement with ARE-San Francisco No. 63, LLC (“ARE”) to lease a portion of a facility comprising approximately 36,593 rentable square feet in San Carlos, California to serve as additional office and research and development laboratory space (the “San Carlos Space”). We expect to commence occupancy of the San Carlos Space in November 2021 once tenant improvements are substantially completed by ARE in accordance with the construction plan. The budget provides a net tenant improvement allowance of $6.3 million and an additional allowance of up to $2.7 million, which we expect to use. ARE will have an enforceable right to payment by us in the form of equal monthly additional rent payments at a certain interest rate through the lease term for the additional allowance. The terms include an initial annualized base rent of approximately $2.5 million, subject to scheduled 3% annual rent increases, an annualized additional allowance payment of approximately $0.4 million, plus certain operating expenses. The lease has a 10-year term with one option to extend the term for an additional period of 5 years. We have provided ARE with an approximately $0.5 million security deposit in the form of a letter of credit. We have the right to sublease the facility, subject to landlord consent. We
determined that the lease commencement date is in November 2021 at which point we will record a right of use asset and a corresponding lease liability.

An estimated maturity analysis of the annual undiscounted cash flows of the lease is as follows (in thousands):
Years ending December 31, Operating Lease
2021 (remaining 9 months) $ 34 
2022 2,925 
2023 3,001 
2024 3,079 
2025 3,159 
2026 and thereafter 19,525 
Total minimum lease payments $ 31,723 
Other Commitments
We enter into supply and service arrangements in the normal course of business. Supply arrangements are primarily for fixed-price manufacture and supply. Service agreements are primarily for the development of manufacturing processes and certain studies. Commitments under service agreements are subject to cancellation at our discretion which may require payment of certain cancellation fees. The timing of completion of service arrangements is subject to variability in estimates of the time required to complete the work.
The following table provides quantitative data regarding our other commitments. Future minimum payments reflect amounts that we expect to pay including potential obligations under services agreements subject to risk of cancellation by us (in thousands):
Other Commitment Agreement Type Agreement Date Future Minimum Payment
Manufacture and supply agreement with expected future payment date of December 2022 April 2016 $ 55 
Development and manufacturing services agreements September 2019 2,374 
Total other commitments $ 2,429 
Credit Facility
In June 30, 2017, we entered into a credit facility (the “Credit Facility”) with Western Alliance Bank consisting of term loans (“Term Debt”) up to $10.0 million, and advances (“Advances”) under a revolving line of credit ("Revolving Line of Credit") up to $5.0 million with an accounts receivable borrowing base of 80% of eligible accounts receivable. As of March 31, 2021 and December 31, 2020, we have not drawn from the Credit Facility. We may draw on the Term Debt and the Revolving Line of Credit at any time prior to October 1, 2021 and October 1, 2024, respectively. On October 1, 2024 loans drawn under the Term Debt mature and the Revolving Line of Credit terminate. Loans made under the Term Debt bear interest through maturity equal to the greater of (i) 3.75% or (ii) the sum of (A) Index Rate (prime rate published in the Money Rates section of the Western Edition of The Wall Street Journal plus (B) 0.50%. Advances made under the Revolving Line of Credit bear interest at a variable annual rate equal to the equal to the greater of (i) 4.25% or (ii) the sum of (A) the prime rate plus (B) 1.00%.
Our obligations under the Credit Facility are secured by a lien on substantially all of our personal property other than our intellectual property. The Credit Facility includes a number of customary covenants and restrictive financial covenants including meeting minimum product revenue levels and maintaining certain minimum cash levels with the lender. The Credit Facility's financial covenants restrict the ability of the Company to transfer collateral, incur additional indebtedness, engage in mergers or acquisitions, pay dividends or make other distributions, make investments, create liens, sell assets, or sell certain assets held at foreign subsidiaries. A failure to comply with these covenants could permit the lender to exercise remedies against us and the collateral securing the Credit Facility, including foreclosure of our properties securing the Credit Facilities and our cash. As of March 31, 2021, we were in compliance with the covenants for the Credit Facility.
The Credit Facility allows for interest-only payments on the Term Debt through November 1, 2022. Monthly payments of principal and interest on the Term Debt are required following the applicable amortization date. We may elect to prepay in full the Term Debt and Advances under the Revolving Line of Credit at any time.
Legal Proceedings
We are not currently a party to any material pending litigation or other material legal proceedings.
We are required to recognize a liability for the fair value of any obligations we assume upon the issuance of a guarantee. We have certain agreements with licensors, licensees and collaborators that contain indemnification provisions. In such provisions, we typically agree to indemnify the licensor, licensee and collaborator against certain types of third party claims. The maximum amount of the indemnifications is not limited. We accrue for known indemnification issues when a loss is probable and can be reasonably estimated. There were no accruals for expenses related to indemnification issues for any periods presented.