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ACCOUNTS RECEIVABLE - NET (Tables)
 12 Months Ended
Dec. 31, 2022
Receivables [Abstract]  
Accounts Receivable Net

Accounts receivable consist of the following:

 

 

 

December 31

 

(in US$ thousands)

 

2022

 

 

2021

 

Accounts receivable

 

$

200

 

 

$

267

 

Less: Allowance for doubtful accounts

 

 

(1

)

 

 

(2

)

 

 

$

199

 

 

$

265

 
Summary of Changes in Allowance for Doubtful Accounts

The following is a summary of the changes in our Company’s allowance for doubtful accounts during the years ended December 31, 2022, 2021 and 2020:

 

(in US$ thousands)

 

2022

 

 

2021

 

 

2020

 

Balance at beginning of year

 

$

2

 

 

$

1

 

 

$

3

 

Additions: Bad debt expense

 

 

2

 

 

 

7

 

 

 

5

 

Less: Write-off

 

 

(3

)

 

 

(6

)

 

 

(7

)

Translation adjustment

 

 

—

 

 

 

—

 

 

 

—

 

Balance at end of year

 

$

1

 

 

$

2

 

 

$

1