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Note 5 - Comprehensive Income - Amounts Reclassified Out of Each Component of OCI (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018
Income tax provision | $ 1,135 | $ 1,096 | $ 693 | $ 981 | $ 1,021 | $ 1,111 | $ 1,377 | $ 741 | $ 3,905 | $ 4,250
Net income | (5,458) | (5,307) | (3,649) | (5,090) | (5,681) | (5,586) | (6,371) | (4,375) | (19,504) | (22,013)
Total before tax | 6,593 | 6,403 | 4,342 | 6,071 | 6,702 | 6,697 | 7,748 | 5,116 | 23,409 | 26,263
Total before tax | $ (6,593) | $ (6,403) | $ (4,342) | $ (6,071) | $ (6,702) | $ (6,697) | $ (7,748) | $ (5,116) | (23,409) | (26,263)
Reclassification out of Accumulated Other Comprehensive Income [Member] |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  | (43) | 214
Reclassification out of Accumulated Other Comprehensive Income [Member] | AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member] |  |  |  |  |  |  |  |  |  |
Total before tax |  |  |  |  |  |  |  |  | (23) |
Income tax provision |  |  |  |  |  |  |  |  | 5 | (60)
Net income |  |  |  |  |  |  |  |  | (18) | 228
Total before tax |  |  |  |  |  |  |  |  |  | (288)
Total before tax |  |  |  |  |  |  |  |  |  | 288
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] |  |  |  |  |  |  |  |  |  |
Income tax provision |  |  |  |  |  |  |  |  | 7 | 3
Net income |  |  |  |  |  |  |  |  | (25) | (14)
Amortization of prior service cost |  |  |  |  |  |  |  |  | (31) | (30)
Actuarial (gain) loss |  |  |  |  |  |  |  |  | (1) | 13
Total before tax |  |  |  |  |  |  |  |  | (32) | (17)
Total before tax |  |  |  |  |  |  |  |  | $ 32 | $ 17

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