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Note 13 - Derivatives - Reclassification out of Accumulated Other Comprehensive Income (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Interest Rate Swap [Member] | Cash Flow Hedging [Member]        
Interest rate swaps $ 241 $ 1,601 $ 591
Interest rate swaps     $ 2,721 $ 1,005