Note 11 - Accumulated Other Comprehensive Loss - Summary of Reclassifications from Accumulated Other Comprehensive Loss to Net Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Amortization of loss	$ (32)	$ (192)	$ (98)	$ 51
Income tax effect	9	55	27	(14)
After tax	(23)	(137)	(71)	37
Reclassification to interest expense	507	(197)	898	(648)
Income tax effect	(144)	56	(255)	184
After tax	363	(141)	643	(464)
Total reclassifications, net of income tax	$ 340	$ (278)	$ 572	$ (427)

Amount, before tax, of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) of defined benefit plan.

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Amount of tax (expense) benefit of reclassification adjustment from accumulated other comprehensive (income) loss for prior service cost (credit) of defined benefit plan.

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Amount before tax of reclassification adjustment from accumulated other comprehensive income of accumulated gain (loss) realized from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's deferred hedging gain (loss).

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