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OTHER CURRENT ASSETS (Tables) | 12 Months Ended
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Dec. 31, 2020
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract] |
Other Current Assets | Other current assets consist of the following:
|  | December 31 |
(in US$ thousands) |  | 2019 |  |  | 2020 |
Loans receivable - current |  | $ | 30 |  |  | $ | 32 |
Less: Allowance for loans receivable - current |  |  | (30 | ) |  |  | (32 | )
Other receivable |  |  | — |  |  |  | 3 |
Other |  |  | 139 |  |  |  | 157 |
|  | $ | 139 |  |  | $ | 160 |
Changes in Allowance for Loans Receivable | The following is a reconciliation of changes in our Company’s allowance for loans receivable - current during the years ended December 31, 2018, 2019 and 2020:
(in US$ thousands) |  | 2018 |  |  | 2019 |  |  | 2020 |
Balance at beginning of year |  | $ | 30 |  |  | $ | 29 |  |  | $ | 30 |
Reversal for collection of bad debt |  |  | — |  |  |  | — |  |  |  | — |
Translation adjustment |  |  | (1 | ) |  |  | 1 |  |  |  | 2 |
Balance at end of year |  | $ | 29 |  |  | $ | 30 |  |  | $ | 32 |

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