SECURITIES - Securities with unrealized losses, aggregated by category and the length of time (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Investment securities
Fair Value - Less Than Twelve Months	$ 419,183	$ 180,901
Gross Unrealized Losses - Less Than Twelve Months	(60,925)	(2,511)
Fair Value - Twelve Months or More	92,022	498
Gross Unrealized Losses - Twelve Months or More	(27,606)	(7)
State and municipal securities
Investment securities
Fair Value - Less Than Twelve Months	110,933	36,962
Gross Unrealized Losses - Less Than Twelve Months	(28,504)	(387)
Fair Value - Twelve Months or More	24,165	257
Gross Unrealized Losses - Twelve Months or More	(12,161)	(5)
U.S. Treasury securities
Investment securities
Fair Value - Less Than Twelve Months	104,544	11,797
Gross Unrealized Losses - Less Than Twelve Months	(3,427)	(91)
Fair Value - Twelve Months or More	2,715
Gross Unrealized Losses - Twelve Months or More	(359)
Callable debentures
Investment securities
Fair Value - Less Than Twelve Months	2,564	2,973
Gross Unrealized Losses - Less Than Twelve Months	(436)	(27)
Collateralized mortgage obligations
Investment securities
Fair Value - Less Than Twelve Months	62,830	40,776
Gross Unrealized Losses - Less Than Twelve Months	(8,187)	(860)
Fair Value - Twelve Months or More	21,568	241
Gross Unrealized Losses - Twelve Months or More	(4,722)	(2)
Mortgage-backed securities
Investment securities
Fair Value - Less Than Twelve Months	138,312	87,220
Gross Unrealized Losses - Less Than Twelve Months	(20,371)	(1,130)
Fair Value - Twelve Months or More	42,529
Gross Unrealized Losses - Twelve Months or More	(10,208)
Equity securities
Investment securities
Fair Value - Less Than Twelve Months		1,173
Gross Unrealized Losses - Less Than Twelve Months		$ (16)
Fair Value - Twelve Months or More	1,045
Gross Unrealized Losses - Twelve Months or More	$ (156)

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 50
-Paragraph 5
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27337-111563

Reference 3: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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-URI http://asc.fasb.org/extlink&oid=123581744&loc=d3e27337-111563

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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