Note 6 - Impairement Losses and Restructuring Cost - Restructuring and Related Costs (Details) $ in Thousands	3 Months Ended
Mar. 31, 2020 USD ($)
Beginning balance	$ 1,840
Accruals/(reversals)	1,614
Payments	(1,346)
Ending balance	2,108
Employee Severance [Member]
Beginning balance	1,326
Accruals/(reversals)	1,583
Payments	(1,168)
Ending balance	1,741
Facility Closing [Member]
Beginning balance	514
Accruals/(reversals)	31
Payments	(178)
Ending balance	$ 367

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
-Topic 420
-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 17
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3367-108585

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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.

+ References

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