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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Name:	us-gaap_RestructuringCharges
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Note 16 - Restructuring Activities (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Restructuring Charges, Total		$ 625
Restructuring Reserve, Ending Balance	0		$ 65
CHINA
Discontinued Operations, Revenue, Remaining Performance Obligation, Amount	24
Restructuring Charges, Total	625
CHINA \| Employee Severance [Member]
Restructuring Charges, Total	562
CHINA \| Facility Closing [Member]
Restructuring Charges, Total	$ 63