7. Commitments and Contingencies Lease Agreements The Company determines if an arrangement is a finance lease, operating lease or short-term lease at inception, or as applicable, and accounts for the arrangement under the relevant accounting literature. Currently, the Company is only party to non-cancellable office and laboratory space operating leases and a short-term office lease. Under the relevant guidance, the Company recognizes operating lease right-of-use (ROU) assets and liabilities based on the present value of the future minimum lease payments over the lease term at the commencement date, using the Companys assumed incremental borrowing rate of 5.5%, and amortizes the ROU assets and liabilities over the lease term. Lease expense for operating leases is recognized on a straight-line basis over the lease term. The Companys short-term lease is not subject to recognition of an ROU asset or liability or straight-line lease expense requirements. In March 2014, the Company entered into a non-cancellable operating lease for office and laboratory space with a lease term through November 2017. In July 2017, the Company entered into an amendment to this lease to extend the lease term through December 2021. On June 1, 2020, the Company entered into a second amendment to its existing operating lease (as amended, the 2014 Lease) and entered into a new non-cancellable temporary operating lease (the Temporary Lease) in connection with a newly executed non-cancellable operating lease for its headquarters location, commencing on July 1, 2021 (the New Lease). The lease term under both the 2014 Lease and the Temporary Lease ends 15 days after the commencement date of the New Lease in July 2021. The remaining monthly rental payments under the 2014 Lease and the rent under the Temporary Lease were abated beginning on June 1, 2020, given the execution of the New Lease. The total lease payments under the New Lease of $7.3 million were allocated amongst the 2014 Lease, Temporary Lease and New Lease based on the relative standalone price of the separate lease components. The New Lease will have a 5-year term upon commencement on July 1, 2021, with an initial monthly base rent of approximately $124,000, which will increase to approximately $139,000 during the last year of the New Lease's term. In addition, under the terms of the New Lease, the Company is required to maintain a letter of credit totaling $124,000 throughout the lease term. In June 2020, the Company adjusted the ROU asset and liability of the 2014 Lease to conform to the modification terms, and recorded an ROU asset and liability for the Temporary Lease upon occupancy. The Company will recognize an ROU asset and liability related to the New Lease upon occupancy, which is expected to occur in July 2021. As of September 30, 2020, the Companys ROU assets and liabilities related to the 2014 Lease and the Temporary Lease are as follows (in thousands): ROU assets (included in other assets) $ 373 Lease liabilities, current portion (included in accounts payable and accrued liabilities) $  Lease liabilities, net of current portion 689 Total lease liabilities $ 689 Maturities of the lease liabilities due under the 2014 Lease and the Temporary Lease are as follows (in thousands): Remaining in 2020 $  2021 12 2022 149 2023 154 2024 158 2025 163 2026 83 Total lease payments 719 Less imputed interest (30 ) Total operating lease liabilities 689 Less lease liabilities, current portion  Lease liabilities, net of current portion $ 689 Supplemental cash flow information related to operating leases was as follows (in thousands): Nine Months Ended September 30, 2020 2019 Cash paid included in operating cash flows $ 163 $ 286 Rent expense was as follows (in thousands): Three Months Ended September 30, Nine Months Ended September 30, 2020 2019 2020 2019 Operating leases $ 119 $ 75 $ 285 $ 226 Short-term lease 9  27  Total rent expense $ 128 $ 75 $ 312 $ 226 Litigation Liabilities for loss contingencies arising from claims, assessments, litigation, fines, penalties, and other sources are recorded when it is probable that a liability has been incurred and the amount can be reasonably estimated. There are no matters currently outstanding for which any liabilities have been accrued.