Other Comprehensive Income Reclassification Adjustments from Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Net gains on investment securities available-for-sale	$ (25)	$ (10)
Tax benefit	5	2
Reclassification adjustments for investment securities available-for-sale	(20)	(8)
Net actuarial loss	0	502
Recognized settlement loss	0	4,022
Reclassification adjustment for defined benefit pension plan, Before-Tax Amount	0	4,524
Tax expense	0	(950)
Reclassification adjustment for defined benefit pension plan, after Tax	0	3,574
Total reclassifications	$ (20)	$ 3,566

Amount, before tax, of increase (decrease) to other comprehensive income from settlement and curtailment gain (loss) of defined benefit plan.

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Amount before tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

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