Comprehensive Income (Details) - Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
COMPREHENSIVE INCOME (Details) - Comprehensive Income (Loss) [Line Items]
Sale of securities available-for-sale Net gains on sale of securities available-for-sale	$ (2,840)	$ 415	$ (9,639)	$ 1,332
Sale of securities available-for-sale Income tax expense	729	(165)	2,466	(525)
Total reclassification	(2,037)	382	(6,011)	17
Amounts Reclassified from Accumulated Other Comprehensive Income/(Loss) [Member]
COMPREHENSIVE INCOME (Details) - Comprehensive Income (Loss) [Line Items]
Sale of securities available-for-sale Net gains on sale of securities available-for-sale				1,596
Sale of securities available-for-sale Income tax expense				(579)
Sale of securities available-for-sale				1,017
Amortization of pension plan net actuarial losses Salaries and employee benefits	91	(103)	274	(309)
Amortization of pension plan net actuarial losses Income tax benefit	(26)	42	(77)	126
Amortization of pension plan net actuarial losses	65	(61)	197	(183)
Total reclassification	$ 65	$ (61)	$ 197	$ 834

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No definition available.

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Other comprehensive income pension plan actuarial (gains) losses before tax.

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Cutstom Element.

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Cutstom Element.

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Cutstom Element.

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Amount after tax and reclassification adjustments of other comprehensive income (loss).

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Amount before tax and reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities.

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Amount of tax expense (benefit) before reclassification adjustments of unrealized holding gain (loss) on available-for-sale securities.

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