The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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LOANS AND ALLOWANCE FOR LOAN LOSSES - Summary of Ending Loan Balances Evaluated for Impairment and Related Allowance for Loan Losses Allocation (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	$ 8,364		$ 11,636
Loans, Collectively evaluated for impairment	2,032,953		1,632,694
Total Loans	2,041,317		1,644,330
Allowance for loan losses, Individually evaluated for impairment	35		36
Allowance for loan losses, Collectively evaluated for impairment	17,482		14,619
Allowance for loan losses, Total	17,517	$ 15,803	14,655	$ 14,460	$ 14,283	$ 14,014
Commercial and Industrial
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Loans	665,312		214,554
Municipal
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Loans	34,276		47,057
Installment and Other
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Loans	32,052		50,735
Commercial
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	5,279		8,215
Loans, Collectively evaluated for impairment	1,535,464		1,069,664
Total Loans	1,540,743		1,077,879
Allowance for loan losses, Individually evaluated for impairment	0		0
Allowance for loan losses, Collectively evaluated for impairment	13,407		11,049
Allowance for loan losses, Total	13,407		11,049
Commercial \| Commercial Real Estate
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	3,734		6,452
Loans, Collectively evaluated for impairment	779,235		752,413
Total Loans	782,969		758,865
Allowance for loan losses, Individually evaluated for impairment	0		0
Allowance for loan losses, Collectively evaluated for impairment	9,347		7,634
Allowance for loan losses, Total	9,347		7,634
Commercial \| Acquisition and Development
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	837		0
Loans, Collectively evaluated for impairment	57,349		57,403
Total Loans	58,186		57,403
Allowance for loan losses, Individually evaluated for impairment	0		0
Allowance for loan losses, Collectively evaluated for impairment	1,069		959
Allowance for loan losses, Total	1,069		959
Commercial \| Commercial and Industrial
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	708		1,763
Loans, Collectively evaluated for impairment	664,604		212,791
Total Loans	665,312		214,554
Allowance for loan losses, Individually evaluated for impairment	0		0
Allowance for loan losses, Collectively evaluated for impairment	2,916		2,356
Allowance for loan losses, Total	2,916		2,356
Commercial \| Municipal
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	0		0
Loans, Collectively evaluated for impairment	34,276		47,057
Total Loans	34,276		47,057
Allowance for loan losses, Individually evaluated for impairment	0		0
Allowance for loan losses, Collectively evaluated for impairment	75		100
Allowance for loan losses, Total	75		100
Consumer
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	3,085		3,421
Loans, Collectively evaluated for impairment	497,489		563,030
Total Loans	500,574		566,451
Allowance for loan losses, Individually evaluated for impairment	35		36
Allowance for loan losses, Collectively evaluated for impairment	3,903		3,430
Allowance for loan losses, Total	3,938		3,466
Consumer \| Residential Mortgage
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	3,068		3,336
Loans, Collectively evaluated for impairment	465,454		512,380
Total Loans	468,522		515,716
Allowance for loan losses, Individually evaluated for impairment	35		36
Allowance for loan losses, Collectively evaluated for impairment	3,517		3,111
Allowance for loan losses, Total	3,552		3,147
Consumer \| Installment and Other
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	17		85
Loans, Collectively evaluated for impairment	32,035		50,650
Total Loans	32,052		50,735
Allowance for loan losses, Individually evaluated for impairment	0		0
Allowance for loan losses, Collectively evaluated for impairment	386		319
Allowance for loan losses, Total	386		319
Unallocated
Financing Receivable, Allowance for Credit Losses [Line Items]
Loans, Individually evaluated for impairment	0		0
Loans, Collectively evaluated for impairment	0		0
Total Loans	0		0
Allowance for loan losses, Individually evaluated for impairment	0		0
Allowance for loan losses, Collectively evaluated for impairment	172		140
Allowance for loan losses, Total	$ 172		$ 140