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LOANS AND ALLOWANCE FOR CREDIT LOSSES - Summary of Loans by Type (Details) - USD ($)	Jun. 30, 2023	Mar. 31, 2023	Dec. 31, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans and Leases Receivable, Gross, Total	$ 1,814,510,000		$ 1,740,040,000
Allowance for credit losses on loans	(19,056,000)	$ (18,346,000)	(16,615,000)	$ (14,547,000)	$ (14,271,000)	$ (13,537,000)
Purchased credit impaired loans			1,027,000
Loans, net	1,795,454,000		1,723,425,000
Commercial
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans and Leases Receivable, Gross, Total			1,111,498,000
Allowance for credit losses on loans			(11,298,000)	$ (8,894,000)	$ (8,922,000)	$ (8,293,000)
Commercial | Commercial real estate - nonowner occupied
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans and Leases Receivable, Gross, Total	733,783,000		675,597,000
Allowance for credit losses on loans	(10,603,000)	(9,654,000)	(6,305,000)
Commercial | Commercial real estate - owner occupied
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans and Leases Receivable, Gross, Total	227,801,000		205,910,000
Allowance for credit losses on loans	(2,025,000)	(1,942,000)	(1,942,000)
Commercial | All other commercial loans
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans and Leases Receivable, Gross, Total	392,684,000		410,077,000
Allowance for credit losses on loans	(3,686,000)	(3,580,000)	(4,142,000)
Residential mortgage loans
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans and Leases Receivable, Gross, Total	404,233,000		393,582,000
Allowance for credit losses on loans	(2,464,000)	(2,864,000)	(2,751,000)
Consumer loans
LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans and Leases Receivable, Gross, Total	56,009,000		54,874,000
Allowance for credit losses on loans	$ (278,000)	$ (306,000)	$ (475,000)

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Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479344/326-20-45-1

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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