SECURITIES (Schedule of Credit Ratings) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Debt Securities, Held-to-maturity	$ 1,059,387	$ 1,117,967
U.S. Government and agency obligations
Debt Securities, Held-to-maturity	307	312
Municipal bonds
Debt Securities, Held-to-maturity	466,032	503,117
Corporate bonds
Debt Securities, Held-to-maturity	2,781	2,961
Mortgage-backed or related securities
Debt Securities, Held-to-maturity	590,267	611,577
Standard & Poor's, AAA to A Rating [Member]
Debt Securities, Held-to-maturity	473,958	509,286
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	456,999	492,105
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	16,459	16,681
Standard & Poor's, Not Rated [Member]
Debt Securities, Held-to-maturity	585,429	608,681
Standard & Poor's, Not Rated [Member] | U.S. Government and agency obligations
Debt Securities, Held-to-maturity	307	312
Standard & Poor's, Not Rated [Member] | Municipal bonds
Debt Securities, Held-to-maturity	9,033	11,012
Standard & Poor's, Not Rated [Member] | Corporate bonds
Debt Securities, Held-to-maturity	2,281	2,461
Standard & Poor's, Not Rated [Member] | Mortgage-backed or related securities
Debt Securities, Held-to-maturity	$ 573,808	$ 594,896