FAIR VALUE, Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Available for sale [Abstract]
Securities available for sale	$ 492,464	$ 421,190
Carrying Value [Member]
Available for sale [Abstract]
Securities available for sale	492,464	421,190
Fair Value [Member]
Available for sale [Abstract]
Securities available for sale	492,464	421,190
Fair Value [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Available for sale [Abstract]
Securities available for sale	0	0
Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member]
Available for sale [Abstract]
Securities available for sale	492,464	421,190
Fair Value [Member] | Significant Unobservable Inputs (Level 3) [Member]
Available for sale [Abstract]
Securities available for sale	0	0
U. S. Agency MBS - Residential [Member]
Available for sale [Abstract]
Securities available for sale	266,338	327,800
U. S. Agency MBS - Residential [Member] | Carrying Value [Member]
Available for sale [Abstract]
Securities available for sale	266,338	327,800
U. S. Agency MBS - Residential [Member] | Fair Value [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Available for sale [Abstract]
Securities available for sale	0	0
U. S. Agency MBS - Residential [Member] | Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member]
Available for sale [Abstract]
Securities available for sale	266,338	327,800
U. S. Agency MBS - Residential [Member] | Fair Value [Member] | Significant Unobservable Inputs (Level 3) [Member]
Available for sale [Abstract]
Securities available for sale	0	0
U. S. Agency CMO's - Residential [Member]
Available for sale [Abstract]
Securities available for sale	23,565	30,076
U. S. Agency CMO's - Residential [Member] | Carrying Value [Member]
Available for sale [Abstract]
Securities available for sale	23,565	30,076
U. S. Agency CMO's - Residential [Member] | Fair Value [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Available for sale [Abstract]
Securities available for sale	0	0
U. S. Agency CMO's - Residential [Member] | Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member]
Available for sale [Abstract]
Securities available for sale	23,565	30,076
U. S. Agency CMO's - Residential [Member] | Fair Value [Member] | Significant Unobservable Inputs (Level 3) [Member]
Available for sale [Abstract]
Securities available for sale	0	0
Total Mortgage-Backed Securities of Government Sponsored Agencies [Member]
Available for sale [Abstract]
Securities available for sale	289,903	357,876
Total Mortgage-Backed Securities of Government Sponsored Agencies [Member] | Carrying Value [Member]
Available for sale [Abstract]
Securities available for sale	289,903	357,876
Total Mortgage-Backed Securities of Government Sponsored Agencies [Member] | Fair Value [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Available for sale [Abstract]
Securities available for sale	0	0
Total Mortgage-Backed Securities of Government Sponsored Agencies [Member] | Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member]
Available for sale [Abstract]
Securities available for sale	289,903	357,876
Total Mortgage-Backed Securities of Government Sponsored Agencies [Member] | Fair Value [Member] | Significant Unobservable Inputs (Level 3) [Member]
Available for sale [Abstract]
Securities available for sale	0	0
U.S. Government Sponsored Agency Securities [Member]
Available for sale [Abstract]
Securities available for sale	138,910	2,626
U.S. Government Sponsored Agency Securities [Member] | Carrying Value [Member]
Available for sale [Abstract]
Securities available for sale	138,910	2,626
U.S. Government Sponsored Agency Securities [Member] | Fair Value [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Available for sale [Abstract]
Securities available for sale	0	0
U.S. Government Sponsored Agency Securities [Member] | Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member]
Available for sale [Abstract]
Securities available for sale	138,910	2,626
U.S. Government Sponsored Agency Securities [Member] | Fair Value [Member] | Significant Unobservable Inputs (Level 3) [Member]
Available for sale [Abstract]
Securities available for sale	0	0
Obligations of States and Political Subdivisions [Member]
Available for sale [Abstract]
Securities available for sale	58,237	55,000
Obligations of States and Political Subdivisions [Member] | Carrying Value [Member]
Available for sale [Abstract]
Securities available for sale	58,237	55,000
Obligations of States and Political Subdivisions [Member] | Fair Value [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Available for sale [Abstract]
Securities available for sale	0	0
Obligations of States and Political Subdivisions [Member] | Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member]
Available for sale [Abstract]
Securities available for sale	58,237	55,000
Obligations of States and Political Subdivisions [Member] | Fair Value [Member] | Significant Unobservable Inputs (Level 3) [Member]
Available for sale [Abstract]
Securities available for sale	0	0
Other Securities [Member]
Available for sale [Abstract]
Securities available for sale	5,414	5,688
Other Securities [Member] | Carrying Value [Member]
Available for sale [Abstract]
Securities available for sale	5,414	5,688
Other Securities [Member] | Fair Value [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Available for sale [Abstract]
Securities available for sale	0	0
Other Securities [Member] | Fair Value [Member] | Significant Other Observable Inputs (Level 2) [Member]
Available for sale [Abstract]
Securities available for sale	5,414	5,688
Other Securities [Member] | Fair Value [Member] | Significant Unobservable Inputs (Level 3) [Member]
Available for sale [Abstract]
Securities available for sale	$ 0	$ 0