Note 7 - Impairement Losses and Restructuring Cost - Restructuring and Related Costs (Details) $ in Thousands	12 Months Ended
Dec. 31, 2019 USD ($)
Beginning balance	$ 3,028
Accruals/(reversals)	2,681
Payments	(3,869)
Ending balance	1,840
Employee Severance [Member]
Beginning balance	760
Accruals/(reversals)	2,751
Payments	(2,185)
Ending balance	1,326
Facility Closing [Member]
Beginning balance	2,268
Accruals/(reversals)	(70)
Payments	(1,684)
Ending balance	$ 514

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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