INVESTMENT SECURITIES (Schedule of Available for Sale Securities in Continuous Unrealized Loss Position and Approximate Fair Value of Investments) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Available for Sale Securities, Fair Value
Less Than 12 Months	$ 51,055	$ 96,955
12 Months or Longer	417,732	388,355
Total	468,787	485,310
Available for Sale Securities, Unrealized Losses
Less Than 12 Months	(3,314)	(5,339)
12 Months or Longer	(121,974)	(101,086)
Total	(125,288)	(106,425)
Held to Maturity Securities, Fair Value
Less Than 12 Months	9,318	28,809
12 Months or Longer	81,883	58,378
Total	91,201	87,187
Held to Maturity Securities, Unrealized Losses
Less Than 12 Months	(573)	(5,411)
12 Months or Longer	(17,166)	(9,693)
Total	(17,739)	(15,104)
Approximate Fair Value
Fair Value, Less than 12 months	60,373	125,764
Fair Value, 12 months or longer	499,615	446,733
Fair Value	559,988	572,497
Unrealized Losses
Unrealized Losses, Less than 12 months	(3,887)	(10,750)
Unrealized Losses, 12 months or longer	139,140	(110,779)
Unrealized Losses	143,027	(121,529)
U.S. Government-Sponsored Agencies [Member]
Available for Sale Securities, Fair Value
12 Months or Longer	183,415	190,542
Total	183,415	190,542
Available for Sale Securities, Unrealized Losses
12 Months or Longer	(61,374)	(54,232)
Total	(61,374)	(54,232)
Held to Maturity Securities, Fair Value
Less Than 12 Months		13,174
12 Months or Longer	35,210	22,263
Total	35,210	35,437
Held to Maturity Securities, Unrealized Losses
Less Than 12 Months		(1,826)
12 Months or Longer	(4,790)	(2,737)
Total	(4,790)	(4,563)
Mortgage-Backed Securities-Residential [Member]
Available for Sale Securities, Fair Value
Less Than 12 Months	50,612	82,907
12 Months or Longer	202,581	174,557
Total	253,193	257,464
Available for Sale Securities, Unrealized Losses
Less Than 12 Months	(3,313)	(4,082)
12 Months or Longer	(54,239)	(42,678)
Total	(57,552)	(46,760)
Held to Maturity Securities, Fair Value
Less Than 12 Months	9,318	15,635
12 Months or Longer	46,673	36,115
Total	55,991	51,750
Held to Maturity Securities, Unrealized Losses
Less Than 12 Months	(573)	(3,585)
12 Months or Longer	(12,376)	(6,956)
Total	(12,949)	(10,541)
SBA Pool Securities [Member]
Available for Sale Securities, Fair Value
Less Than 12 Months	443	3,377
12 Months or Longer	22,932	23,256
Total	23,375	26,633
Available for Sale Securities, Unrealized Losses
Less Than 12 Months	(1)	(332)
12 Months or Longer	(4,515)	(4,176)
Total	(4,516)	(4,508)
State and Political Subdivisions [Member]
Available for Sale Securities, Fair Value
Less Than 12 Months		1,579
12 Months or Longer	649
Total	649	1,579
Available for Sale Securities, Unrealized Losses
Less Than 12 Months		(17)
12 Months or Longer	(1)
Total	(1)	(17)
Corporate Bond [Member]
Available for Sale Securities, Fair Value
Less Than 12 Months		9,092
12 Months or Longer	8,155
Total	8,155	9,092
Available for Sale Securities, Unrealized Losses
Less Than 12 Months		(908)
12 Months or Longer	(1,845)
Total	$ (1,845)	$ (908)