SECURITIES - Continuous Unrealized Loss Position (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Fair Value
Total	$ 0
Agency notes
Fair Value
12 Consecutive Months or Longer	9,371,000
Total	9,371,000
Unrealized Losses
12 Consecutive Months or Longer	629,000
Total	629,000
Treasury securities
Fair Value
12 Consecutive Months or Longer	234,190,000	$ 227,256,000
Total	234,190,000	227,256,000
Unrealized Losses
12 Consecutive Months or Longer	11,687,000	19,643,000
Total	11,687,000	19,643,000
Corporate securities
Fair Value
Less than 12 Consecutive Months	20,935,000	110,707,000
12 Consecutive Months or Longer	130,235,000	50,116,000
Total	151,170,000	160,823,000
Unrealized Losses
Less than 12 Consecutive Months	917,000	8,494,000
12 Consecutive Months or Longer	22,891,000	8,581,000
Total	23,808,000	17,075,000
Pass-through MBS issued by GSEs
Fair Value
Less than 12 Consecutive Months		50,813,000
12 Consecutive Months or Longer	203,469,000	190,427,000
Total	203,469,000	241,240,000
Unrealized Losses
Less than 12 Consecutive Months		2,010,000
12 Consecutive Months or Longer	24,978,000	29,524,000
Total	24,978,000	31,534,000
Agency CMOs
Fair Value
Less than 12 Consecutive Months		55,924,000
12 Consecutive Months or Longer	251,900,000	220,413,000
Total	251,900,000	276,337,000
Unrealized Losses
Less than 12 Consecutive Months		3,454,000
12 Consecutive Months or Longer	46,491,000	46,603,000
Total	46,491,000	50,057,000
State and municipal obligations.
Fair Value
Less than 12 Consecutive Months	1,796,000	10,848,000
12 Consecutive Months or Longer	21,513,000	22,681,000
Total	23,309,000	33,529,000
Unrealized Losses
Less than 12 Consecutive Months	54,000	174,000
12 Consecutive Months or Longer	1,878,000	2,847,000
Total	$ 1,932,000	$ 3,021,000