Note 10 - Segment Information (Details Textual) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Disposal Group, Including Discontinued Operation, Assets, Total	$ 4,503	$ 7,696

Amount classified as assets attributable to disposal group held for sale or disposed of.

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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant