FAIR VALUE MEASUREMENTS (Summary of fair values for assets and liabilities) (Details) - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Interest Rate Swap Derivative Asset [Member]
ASSETS:
Assets, Fair Value Disclosure	$ 48
Mortgage Banking Derivative Asset [Member]
ASSETS:
Assets, Fair Value Disclosure	6,031
Mortgage Banking Derivative Liability [Member]
LIABILITIES:
Financial Liabilities Fair Value Disclosure	400
Loans held for sale [Member]
ASSETS:
Assets, Fair Value Disclosure	116,561
U.S. Government Treasury [Member]
ASSETS:
Assets, Fair Value Disclosure	120,116	$ 232,778
U.S. Government Agency [Member]
ASSETS:
Assets, Fair Value Disclosure	194,994	156,078
States and Political Subdivisions [Member]
ASSETS:
Assets, Fair Value Disclosure	4,830	6,319
Mortgage-Backed Securities [Member]
ASSETS:
Assets, Fair Value Disclosure	535	773
Equity Securities [Member]
ASSETS:
Assets, Fair Value Disclosure	7,778	7,653
Level 1 Inputs [Member] | Interest Rate Swap Derivative Asset [Member]
ASSETS:
Assets, Fair Value Disclosure	0
Level 1 Inputs [Member] | Mortgage Banking Derivative Asset [Member]
ASSETS:
Assets, Fair Value Disclosure	0
Level 1 Inputs [Member] | Mortgage Banking Derivative Liability [Member]
LIABILITIES:
Financial Liabilities Fair Value Disclosure	0
Level 1 Inputs [Member] | Loans held for sale [Member]
ASSETS:
Assets, Fair Value Disclosure	0
Level 1 Inputs [Member] | U.S. Government Treasury [Member]
ASSETS:
Assets, Fair Value Disclosure	120,116	232,778
Level 1 Inputs [Member] | U.S. Government Agency [Member]
ASSETS:
Assets, Fair Value Disclosure	0	0
Level 1 Inputs [Member] | States and Political Subdivisions [Member]
ASSETS:
Assets, Fair Value Disclosure	0	0
Level 1 Inputs [Member] | Mortgage-Backed Securities [Member]
ASSETS:
Assets, Fair Value Disclosure	0	0
Level 1 Inputs [Member] | Equity Securities [Member]
ASSETS:
Assets, Fair Value Disclosure	0	0
Level 2, Inputs [Member] | Interest Rate Swap Derivative Asset [Member]
ASSETS:
Assets, Fair Value Disclosure	48
Level 2, Inputs [Member] | Mortgage Banking Derivative Asset [Member]
ASSETS:
Assets, Fair Value Disclosure	0
Level 2, Inputs [Member] | Mortgage Banking Derivative Liability [Member]
LIABILITIES:
Financial Liabilities Fair Value Disclosure	400
Level 2, Inputs [Member] | Loans held for sale [Member]
ASSETS:
Assets, Fair Value Disclosure	116,561
Level 2, Inputs [Member] | U.S. Government Treasury [Member]
ASSETS:
Assets, Fair Value Disclosure	0	0
Level 2, Inputs [Member] | U.S. Government Agency [Member]
ASSETS:
Assets, Fair Value Disclosure	194,994	156,078
Level 2, Inputs [Member] | States and Political Subdivisions [Member]
ASSETS:
Assets, Fair Value Disclosure	4,830	6,319
Level 2, Inputs [Member] | Mortgage-Backed Securities [Member]
ASSETS:
Assets, Fair Value Disclosure	535	773
Level 2, Inputs [Member] | Equity Securities [Member]
ASSETS:
Assets, Fair Value Disclosure	7,778	7,653
Level 3, Inputs [Member] | Interest Rate Swap Derivative Asset [Member]
ASSETS:
Assets, Fair Value Disclosure	0
Level 3, Inputs [Member] | Mortgage Banking Derivative Asset [Member]
ASSETS:
Assets, Fair Value Disclosure	6,031
Level 3, Inputs [Member] | Mortgage Banking Derivative Liability [Member]
LIABILITIES:
Financial Liabilities Fair Value Disclosure	0
Level 3, Inputs [Member] | Loans held for sale [Member]
ASSETS:
Assets, Fair Value Disclosure	0
Level 3, Inputs [Member] | U.S. Government Treasury [Member]
ASSETS:
Assets, Fair Value Disclosure	0	0
Level 3, Inputs [Member] | U.S. Government Agency [Member]
ASSETS:
Assets, Fair Value Disclosure	0	0
Level 3, Inputs [Member] | States and Political Subdivisions [Member]
ASSETS:
Assets, Fair Value Disclosure	0	0
Level 3, Inputs [Member] | Mortgage-Backed Securities [Member]
ASSETS:
Assets, Fair Value Disclosure	0	0
Level 3, Inputs [Member] | Equity Securities [Member]
ASSETS:
Assets, Fair Value Disclosure	$ 0	$ 0