INVESTMENT SECURITIES - AFS (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023
Available-for-Sale Debt Securities
Amortized Cost	$ 614,368	$ 618,525
Gross Unrealized Gains	1,752	1,868
Gross Unrealized Losses	(28,315)	(29,080)
Allowance for Credit Losses	0	0
Total available-for-sale debt securities	587,805	591,313
U.S. Treasury securities and U.S. Government agencies
Available-for-Sale Debt Securities
Amortized Cost	426,414	421,576
Gross Unrealized Losses	(13,289)	(14,543)
Allowance for Credit Losses	0	0
Total available-for-sale debt securities	413,125	407,033
Private label mortgage backed security
Available-for-Sale Debt Securities
Amortized Cost	385	443
Gross Unrealized Gains	1,387	1,330
Allowance for Credit Losses	0	0
Total available-for-sale debt securities	1,772	1,773
Mortgage-backed securities - residential
Available-for-Sale Debt Securities
Amortized Cost	159,666	167,996
Gross Unrealized Gains	106	176
Gross Unrealized Losses	(13,950)	(13,462)
Allowance for Credit Losses	0	0
Total available-for-sale debt securities	145,822	154,710
Collateralized mortgage obligations
Available-for-Sale Debt Securities
Amortized Cost	22,077	22,698
Gross Unrealized Gains	39	36
Gross Unrealized Losses	(1,076)	(1,075)
Allowance for Credit Losses	0	0
Total available-for-sale debt securities	21,040	21,659
Corporate bonds
Available-for-Sale Debt Securities
Amortized Cost	2,011	2,012
Gross Unrealized Gains	8	8
Allowance for Credit Losses	0	0	$ (3)
Total available-for-sale debt securities	2,019	2,020
Trust preferred security
Available-for-Sale Debt Securities
Amortized Cost	3,815	3,800
Gross Unrealized Gains	212	318
Allowance for Credit Losses	0	0
Total available-for-sale debt securities	$ 4,027	$ 4,118

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-2

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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-2

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Amount excluding accrued interest, of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 30
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479130/326-30-45-1

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 30
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479130/326-30-45-1

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