SECURITIES (Schedule of Credit Ratings) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Debt Securities, Held-to-maturity	$ 521,355	$ 421,807
U.S. Government and agency obligations
Debt Securities, Held-to-maturity	316	340
Municipal bonds
Debt Securities, Held-to-maturity	420,555	370,998
Corporate bonds
Debt Securities, Held-to-maturity	3,092	3,222
Mortgage-backed or related securities
Debt Securities, Held-to-maturity	97,392	47,247
Standard & Poor's, AAA to A Rating [Member]
Debt Securities, Held-to-maturity	406,863	349,623
Standard & Poor's, AAA to A Rating [Member] | U.S. Government and agency obligations
Debt Securities, Held-to-maturity	0	0
Standard & Poor's, AAA to A Rating [Member] | Municipal bonds
Debt Securities, Held-to-maturity	406,363	349,123
Standard & Poor's, AAA to A Rating [Member] | Corporate bonds
Debt Securities, Held-to-maturity	500	500
Standard & Poor's, AAA to A Rating [Member] | Mortgage-backed or related securities
Debt Securities, Held-to-maturity	0	0
Standard & Poor's, Not Rated [Member]
Debt Securities, Held-to-maturity	114,492	72,184
Standard & Poor's, Not Rated [Member] | U.S. Government and agency obligations
Debt Securities, Held-to-maturity	316	340
Standard & Poor's, Not Rated [Member] | Municipal bonds
Debt Securities, Held-to-maturity	14,192	21,875
Standard & Poor's, Not Rated [Member] | Corporate bonds
Debt Securities, Held-to-maturity	2,592	2,722
Standard & Poor's, Not Rated [Member] | Mortgage-backed or related securities
Debt Securities, Held-to-maturity	$ 97,392	$ 47,247