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Note 13 - Discontinued Operations (Details Textual) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Dec. 31, 2016
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent $ (1,250) $ (263)  
Discontinued Operation, Amounts of Material Contingent Liabilities Remaining 18,122   $ 16,703
Cash Provided by (Used in) Operating Activities, Discontinued Operations $ (511) $ 382