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Note 25 - Captive Insurance Company - Activity in the Liability for Unpaid Losses and Loss Adjustment Expenses (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Balance at the beginning of the year $ 19,515 $ 20,046
Incurred related to current year 5,915 6,247
Incurred related to prior years (727) (67)
Total incurred 5,188 6,180
Paid related to current year (742) (962)
Paid related to prior years (4,996) (5,749)
Total paid (5,738) (6,711)
Balance at the end of the year $ 18,965 $ 19,515