Note 21 - Trade Receivables, Other Receivables and Prepayments (Tables)

12 Months Ended

Dec. 31, 2019

Statement Line Items [Line Items]

Disclosure of trade receivables, prepayments and other receivables [text block]

[US$ thousands]	As of December 31,
Trade receivables	2018		2019
Trade receivables		24,594		39,981
Unbilled receivables		12,874		9,390
Total		37,468		49,371

[US$ thousands]	As of December 31,
Other receivables	2018		2019
VAT		754		1,232
Receivable from Otello Corporation ASA		1,267		924
Deposit in restricted escrow account (1)		-		52,878
Other		5,102		4,078
Total		7,123		59,112

[US$ thousands]	As of December 31,
Prepayments	2018		2019
Prepaid expenses (1)		14,372		25,809
Total		14,372		25,809

Provision for impairment of trade receivables [text block]

[US$ thousands]	As of December 31,
Allowance for impairment of trade receivables	2018			2019
As of period start, as previously reported		1,837			1,619
Impact of IFRS 9		100			-
As of period start, restated		1,937			1,619
Change in the period (1)		(318	)		(173	)
As of period end		1,619			1,446

Disclosure of aging of trade receivables [text block]

[US$ thousands]			Neither past due		Past due
Aging analysis of trade receivables	Total		nor impaired		<30 days		31-60 days		61-90 days		>90 days (1)
As of December 31, 2018		24,594		15,603		3,252		2,588		690		2,460
As of December 31, 2019		39,981		22,125		8,761		657		341		8,097