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Note 25 - Revenue From Contracts With Customers (Details Textual) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Contract with Customer, Asset, after Allowance for Credit Loss, Total $ 48,934,000 $ 110,432
Contract with Customer, Asset, Net, Current, Total 42,772,000 99,468,000
Contract with Customer, Liability, Current 24,133,000 28,773,000
Contract with Customer, Liability, Revenue Recognized $ 26,568,000 $ 17,916,000