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MARKETABLE SECURITIES - NONCURRENT (Tables)

12 Months Ended

Dec. 31, 2020

Marketable Securities [Abstract]

Summary of Marketable Securities Noncurrent

Marketable securities – noncurrent consist of the following:

		December 31
(in US$ thousands)		2019				2020
Debt securities, classified as available-for-sale		$	—			$	10,000

X

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

+ References

No definition available.

+ Details

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- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration