SECURITIES, Securities with Unrealized Losses in Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Continuous unrealized loss position, fair value [Abstract]
Less than 12 months	$ 148,774	$ 58,207
12 months or more	0	0
Total	148,774	58,207
Continuous unrealized loss position, unrealized loss [Abstract]
Less than 12 months	(2,513)	(292)
12 months or more	0	0
Total	(2,513)	(292)
U.S. Government Sponsored Agency Securities [Member]
Continuous unrealized loss position, fair value [Abstract]
Less than 12 months	66,447
12 months or more	0
Total	66,447
Continuous unrealized loss position, unrealized loss [Abstract]
Less than 12 months	(1,553)
12 months or more	0
Total	(1,553)
U.S. Government Sponsored Agency MBS - Residential [Member]
Continuous unrealized loss position, fair value [Abstract]
Less than 12 months	66,994	58,207
12 months or more	0	0
Total	66,994	58,207
Continuous unrealized loss position, unrealized loss [Abstract]
Less than 12 months	(560)	(292)
12 months or more	0	0
Total	(560)	$ (292)
Obligations of States and Political Subdivisions [Member]
Continuous unrealized loss position, fair value [Abstract]
Less than 12 months	15,333
12 months or more	0
Total	15,333
Continuous unrealized loss position, unrealized loss [Abstract]
Less than 12 months	(400)
12 months or more	0
Total	$ (400)