(c) Fair
value measurements
The Company is required to disclose information on all assets and
liabilities reported at fair value that enables an assessment of
the inputs used in determining the reported fair values. The fair
value hierarchy prioritizes valuation inputs based on the
observable nature of those inputs. The hierarchy defines three
levels of valuation inputs:
Level 1 - Quoted prices in active markets for identical assets or
liabilities
Level 2 - Inputs other than quoted prices included within Level 1
that are observable for the asset or liability, either directly or
indirectly
Level 3 - Unobservable inputs that reflect the Company's own
assumptions about the assumptions market participants would use in
pricing the asset or liability
The carrying amounts of the Company’s cash and cash equivalents,
restricted cash, accounts receivable, accounts payable and accrued
expenses approximate fair value because of the short-term nature of
these instruments. The fair value of marketable securities, which
are measured at fair value on a recurring basis is detailed in Note
6, Fair value measurements.
(d) Significant
concentrations of credit risk
The Company held cash and cash equivalents of $79,001,000,
marketable securities of $120,669,000 and restricted cash of
$1,712,000 as of September 30, 2022. The cash and cash
equivalents and restricted cash are held with multiple banks and
the Company monitors the credit rating of those banks. The Company
maintains cash balances in excess of amounts insured by the Federal
Deposit Insurance Corporation in the United States and the U.K.
Government Financial Services Compensation Scheme in the United
Kingdom. The Company’s investment policy limits investments to
certain types of instruments, such as money market instruments,
corporate debt securities and commercial paper, places restrictions
on maturities and concentration by type and issuer and specifies
the minimum credit ratings for all investments and the average
credit quality of the portfolio.
The Company has three customers, which are Genentech, Astellas and
GSK. There were accounts receivable of $1,774,000 as of
September 30, 2022 and $752,000 as of
December 31, 2021. The Company has been transacting with
Genentech since 2021, Astellas since 2020 and GSK since 2014,
during which time no impairment losses have been recognized. As of
September 30, 2022, there were no overdue accounts
receivable.
(e) New
accounting pronouncements
To be adopted in future
periods
Measurement of credit losses on financial instruments
In June 2016, the FASB issued ASU 2016-13 - Financial Instruments -
Credit losses, which replaces the incurred loss impairment
methodology for financial instruments in current GAAP with a
methodology that reflects expected credit losses and requires
consideration of a broader range of reasonable and supportable
information to inform credit loss estimates. The guidance is
effective for the fiscal year beginning January 1, 2020, including
interim periods within that fiscal year. In November 2019, the FASB
issued ASU 2019-10 which resulted in the postponement of the
effective date of the new guidance for eligible smaller reporting
companies (as defined by the SEC), including the Company, at that
time to the fiscal year beginning January 1, 2023. The Company
intends to adopt the guidance in the fiscal year beginning January
1, 2023. The guidance must be adopted using a
modified-retrospective approach and a prospective transition
approach is required for debt securities for which an
other-than-temporary impairment had been recognized before the
effective date. The Company is currently evaluating the impact of
the guidance on its consolidated financial statements.
Accounting for Contract Assets and Contract Liabilities from
Contracts with Customers
In October 2021, the FASB issued ASU 2021-08 – Business
Combinations (Topic 805)- Accounting for Contract Assets and
Contract Liabilities from Contracts with Customers, which improves
the accounting for acquired revenue contracts with customers in a
business combination by addressing diversity in and inconsistency
related to the following: (1) recognition of an acquired contract
liability