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ACCOUNTS RECEIVABLE - NET (Tables)
 12 Months Ended
Dec. 31, 2019
Receivables [Abstract]  
Accounts Receivable Net

Accounts receivable consist of the following:

 

 

 

December 31

 

(in US$ thousands)

 

2018

 

 

2019

 

Accounts receivable

 

$

528

 

 

$

371

 

Less: Allowance for doubtful accounts

 

 

(5

)

 

 

(3

)

 

 

$

523

 

 

$

368

 
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, 2017, 2018 and 2019:

 

(in US$ thousands)

 

2017

 

 

2018

 

 

2019

 

Balance at beginning of year

 

$

32

 

 

$

12

 

 

$

5

 

Additions: Bad debt expense

 

 

127

 

 

 

23

 

 

 

24

 

Less: Write-off

 

 

(149

)

 

 

(29

)

 

 

(26

)

Translation adjustment

 

 

2

 

 

 

(1

)

 

 

—

 

Balance at end of year

 

$

12

 

 

$

5

 

 

$

3