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Note 11 - Income Taxes - Consolidated Provisions for Income Taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2017
Sep. 30, 2017
Jun. 30, 2017
Mar. 31, 2017
Dec. 31, 2016
Sep. 30, 2016
Jun. 30, 2016
Mar. 31, 2016
Dec. 31, 2017
Dec. 31, 2016
Current                 $ 65 $ 30
Deferred                 3,105 103
Total                 3,170 133
Current                 143 19
Deferred                 (278) 17
Total                 (135) 36
Total $ 2,600 $ 173 $ 132 $ 130 $ (237) $ 162 $ 144 $ 100 $ 3,035 $ 169