Note 11 - Fair Value Measurement - Details of Fair Value Adjustment (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Unrealized (loss) gain on investments in equity securities	$ (4,295)	$ 10,268	$ (2,389)
Total fair value adjustments, net	(35,792)	(11,806)	(5,437)
Derivative [Member] \| Fair Value, Inputs, Level 3 [Member]
fair value gain(loss)	(32,655)	(22,074)	(3,971)
Securities Investment [Member] \| Fair Value, Inputs, Level 3 [Member]
fair value gain(loss)	$ 1,158	$ 0	$ 923

Total amount of realized gain (loss) and unrealized gain (loss) recognized in income from asset (liability) measured at fair value on recurring basis using unobservable input (level 3) and still held.

No definition available.

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- Definition

Amount of unrealized gain (loss) recognized in income from asset (liability) measured at fair value on recurring basis using unobservable input (level 3) and still held.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

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Amount of gain (loss) recognized in income from asset and liability measured at fair value on recurring basis using unobservable input (level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

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