Note 8 - Other Expenses (Tables)

12 Months Ended

Dec. 31, 2019

Statement Line Items [Line Items]

Disclosure of other expenses by nature [text block]

[US$ thousands]	Year ended December 31,
Other expenses	2017		2018		2019
Hosting		12,105		10,146		6,941
Audit, legal and other advisory services		3,529		8,306		8,533
Software license fees		1,346		1,799		2,566
Rent and other office expenses		4,304		4,573		5,379
Travel		1,775		2,057		3,990
Other		2,300		1,477		4,801
Total		25,359		28,359		32,210