Leases
12 Months Ended
Dec. 31, 2022
Leases [Abstract]  
Leases
7.
Leases

The Company leases facilities under non-cancellable operating leases, which have lease terms varying from one to five years. Total lease costs for the years ended December 31, 2020, 2021 and 2022 was US$2.3 million, US$4.2 million and US$4.3 million, respectively, included in cost of revenues, research and development, sales and marketing and general and administrative expenses in the Company’s consolidated statements of comprehensive loss. Out of the total lease costs, there was US$0.5 million, US$0.5 million and US$0.3 million of expenses for short-term leases within 12 months.

Supplemental cash flow information related to leases were as follows:

 

2021

 

 

2022

 

 

(US$ thousand)

 

Cash paid for fixed operating lease costs included in the measurement of lease obligations in operating activities

 

 

3,995

 

 

 

4,212

 

Right-of-use assets obtained in exchange for operating lease obligations

 

 

4,300

 

 

 

198

 

Lease term and discount rates were as follows:

As of December 31,

 

2021

 

 

2022

 

 

(US$ thousand)

 

Weighted-average remaining lease term

 

 

 

 

 

        Operating leases

2.0 years

 

 

0.9 years

 

Weighted-average discount rate

 

 

 

 

 

        Operating leases

 

5.1

%

 

 

5.1

%

 

Maturities of lease liabilities were as follows:

 

 

As of December 31, 2022

 

 

(US$ thousand)

 

 2023

 

$

2,153

 

 2024

 

 

166

 

Total undiscounted lease payments

 

 

2,319

 

Less: imputed interest

 

 

(47

)

Total present value of lease liabilities

 

$

2,272