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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 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Amortization of defined benefit plan pension items:        
Amortization of loss $ (33) $ 122 $ (66) $ 243
Income tax effect 9 (35) 18 (69)
After tax (24) 87 (48) 174
Amortization of gain on interest rate swap:        
Reclassification to interest expense 391 (224) 391 (451)
Income tax effect (111) 64 (111) 128
After tax 280 (160) 280 (323)
Total reclassifications, net of income tax $ 256 $ (73) $ 232 $ (149)