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Note 13 - Discontinued Operations - Reconciliation of the Pre-tax Loss on Discontinued Operations to the Net Loss on Discontinued Operations (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Discontinued Operations And Disposal Groups [Abstract]    
Loss from discontinued operations $ (237) $ (1,923)
Income tax benefit 46 673
Loss from discontinued operations, net of tax $ (191) $ (1,250)