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Note 17 - Discontinued Operations (Details Textual) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Discontinued Operations And Disposal Groups [Abstract]
Discontinued Operation, Amounts of Material Contingent Liabilities Remaining	$ 16,315		$ 17,411
Cash Provided by (Used in) Operating Activities, Discontinued Operations	$ (666)	$ (557)

Amounts of material contingent liabilities, for example, but not limited to, product or environmental liabilities or litigation, that remain with the entity despite the disposal of the disposal group that is classified as a component of the entity.

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