Comprehensive Income (Details) - Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
COMPREHENSIVE INCOME (Details) - Comprehensive Income (Loss) [Line Items]
Sale of securities available-for-sale Net gains on sale of securities available-for-sale	$ 271	$ (1,423)	$ (5,169)	$ 4,829
Sale of securities available-for-sale Income tax expense	(68)	392	1,364	(1,299)
Net interest income on swaps - Borrowings	(584)	(12)	(318)	(311)
Net interest income on swaps Income tax expense	167	71	344	69
Net interest income on swaps	417	247	871	242
Total reclassification	499	(1,155)	(2,987)	1,456
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	195		195	29
Sale of securities available-for-sale Income tax expense	(48)		(48)	(6)
Sale of securities available-for-sale	147		147	23
Net interest income on swaps - Borrowings	(584)	(318)	(1,215)	(311)
Net interest income on swaps Income tax expense	165	71	342	69
Net interest income on swaps	(419)	(247)	(873)	(242)
Amortization of pension plan net actuarial losses - other components of net periodic pension expense	(75)	(76)	(150)	(151)
Amortization of pension plan net actuarial losses Income tax benefit	22	21	42	42
Amortization of pension plan net actuarial losses	(53)	(55)	(108)	(109)
Total reclassification	$ (325)	$ (302)	$ (834)	$ (328)