LOANS AND ALLOWANCE FOR LOAN LOSSES - Summary of Impaired Loans by Class (Detail) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Recorded Investment (Book Balance)
Impaired Loans with a Specific Allowance	$ 425	$ 743
Impaired Loans with No Specific Allowance	11,211	5,554
Unpaid Principal Balance (Legal Balance)
Impaired Loans with a Specific Allowance	425	743
Impaired Loans with No Specific Allowance	16,791	7,832
Related Allowance	36	38
Commercial Real Estate \| Owner-occupied
Recorded Investment (Book Balance)
Impaired Loans with a Specific Allowance	0	0
Impaired Loans with No Specific Allowance	5,872	1,880
Unpaid Principal Balance (Legal Balance)
Impaired Loans with a Specific Allowance	0	0
Impaired Loans with No Specific Allowance	8,086	2,576
Related Allowance	0	0
Commercial Real Estate \| Multi-family
Recorded Investment (Book Balance)
Impaired Loans with a Specific Allowance	0	0
Impaired Loans with No Specific Allowance	345	131
Unpaid Principal Balance (Legal Balance)
Impaired Loans with a Specific Allowance	0	0
Impaired Loans with No Specific Allowance	569	336
Related Allowance	0	0
Commercial Real Estate \| Non-owner occupied residential
Recorded Investment (Book Balance)
Impaired Loans with a Specific Allowance	0	0
Impaired Loans with No Specific Allowance	235	309
Unpaid Principal Balance (Legal Balance)
Impaired Loans with a Specific Allowance	0	0
Impaired Loans with No Specific Allowance	422	632
Related Allowance	0	0
Commercial and industrial
Recorded Investment (Book Balance)
Impaired Loans with a Specific Allowance	0	0
Impaired Loans with No Specific Allowance	1,763	286
Unpaid Principal Balance (Legal Balance)
Impaired Loans with a Specific Allowance	0	0
Impaired Loans with No Specific Allowance	3,361	457
Related Allowance	0	0
Residential mortgage \| First lien
Recorded Investment (Book Balance)
Impaired Loans with a Specific Allowance	425	743
Impaired Loans with No Specific Allowance	2,165	2,134
Unpaid Principal Balance (Legal Balance)
Impaired Loans with a Specific Allowance	425	743
Impaired Loans with No Specific Allowance	3,164	2,727
Related Allowance	36	38
Residential mortgage \| Home equity – term
Recorded Investment (Book Balance)
Impaired Loans with a Specific Allowance	0	0
Impaired Loans with No Specific Allowance	13	16
Unpaid Principal Balance (Legal Balance)
Impaired Loans with a Specific Allowance	0	0
Impaired Loans with No Specific Allowance	15	23
Related Allowance	0	0
Residential mortgage \| Home equity lines of credit
Recorded Investment (Book Balance)
Impaired Loans with a Specific Allowance	0	0
Impaired Loans with No Specific Allowance	733	798
Unpaid Principal Balance (Legal Balance)
Impaired Loans with a Specific Allowance	0	0
Impaired Loans with No Specific Allowance	1,077	1,081
Related Allowance	0	$ 0
Installment and other loans
Recorded Investment (Book Balance)
Impaired Loans with a Specific Allowance	0
Impaired Loans with No Specific Allowance	85
Unpaid Principal Balance (Legal Balance)
Impaired Loans with a Specific Allowance	0
Impaired Loans with No Specific Allowance	97
Related Allowance	$ 0

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Amount of allowance for credit losses related to recorded investment.

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Amount of investment in impaired financing receivables for which there is no related allowance for credit losses.

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