Note Payable	12 Months Ended
Dec. 31, 2021
Note Payable [Abstract]
Note Payable	10. Note Payable In December 2020, the Company had renewed its $7.3 million loan with a commercial bank pursuant to a one-year Fixed Rate – Term Promissory Note (the “Note”). The Company’s obligations under the Note were secured by an Assignment and Pledge of Time Deposit (“Time Deposit”), under which the Company had pledged to the commercial bank the proceeds of a time deposit account in the amount of the loan and recorded the time deposit and accrued interest as restricted cash on the balance sheet. The principal was due on December 30, 2021 with no penalties for prepayments. The interest rate was fixed at 1.40%. The secured time deposit had a fixed interest rate of 0.40%. The Company repaid the Note with the proceeds from the Time Deposit in September 2021.

Note Payable

12 Months Ended

Dec. 31, 2021

10. Note Payable

In December 2020, the Company had renewed its $7.3 million loan with a commercial bank pursuant to a one-year Fixed Rate – Term Promissory Note (the “Note”). The Company’s obligations under the Note were secured by an Assignment and Pledge of Time Deposit (“Time Deposit”), under which the Company had pledged to the commercial bank the proceeds of a time deposit account in the amount of the loan and recorded the time deposit and accrued interest as restricted cash on the balance sheet. The principal was due on December 30, 2021 with no penalties for prepayments. The interest rate was fixed at 1.40%. The secured time deposit had a fixed interest rate of 0.40%. The Company repaid the Note with the proceeds from the Time Deposit in September 2021.