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LOANS AND ALLOWANCE FOR LOAN LOSSES - Schedule of Activity in Allowance for Loan Losses (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Activity in allowance for loan losses |  |  |
Balance, beginning of year | $ 14,014 | $ 12,796 | $ 12,775
Provision for loan losses | 900 | 800 | 1,000
Charge-offs | (865) | (464) | (1,266)
Recoveries | 606 | 882 | 287
Balance, end of year | 14,655 | 14,014 | 12,796
Unallocated |  |  |
Activity in allowance for loan losses |  |  |
Balance, beginning of year | 570 | 475 | 414
Provision for loan losses | (430) | 95 | 61
Charge-offs | 0 | 0 | 0
Recoveries | 0 | 0 | 0
Balance, end of year | 140 | 570 | 475
Commercial |  |  |
Activity in allowance for loan losses |  |  |
Balance, beginning of year | 9,447 | 8,710 | 9,238
Provision for loan losses | 1,497 | 177 | 234
Charge-offs | (324) | (24) | (920)
Recoveries | 429 | 584 | 158
Balance, end of year | 11,049 | 9,447 | 8,710
Commercial | Commercial Real Estate |  |  |
Activity in allowance for loan losses |  |  |
Balance, beginning of year | 6,876 | 6,763 | 7,530
Provision for loan losses | 515 | (442) | 38
Charge-offs | (25) | (17) | (835)
Recoveries | 268 | 572 | 30
Balance, end of year | 7,634 | 6,876 | 6,763
Commercial | Acquisition and Development |  |  |
Activity in allowance for loan losses |  |  |
Balance, beginning of year | 817 | 417 | 580
Provision for loan losses | 139 | 396 | (167)
Charge-offs | 0 | (7) | 0
Recoveries | 3 | 11 | 4
Balance, end of year | 959 | 817 | 417
Commercial | Commercial and Industrial |  |  |
Activity in allowance for loan losses |  |  |
Balance, beginning of year | 1,656 | 1,446 | 1,074
Provision for loan losses | 841 | 209 | 333
Charge-offs | (299) | 0 | (85)
Recoveries | 158 | 1 | 124
Balance, end of year | 2,356 | 1,656 | 1,446
Commercial | Municipal |  |  |
Activity in allowance for loan losses |  |  |
Balance, beginning of year | 98 | 84 | 54
Provision for loan losses | 2 | 14 | 30
Charge-offs | 0 | 0 | 0
Recoveries | 0 | 0 | 0
Balance, end of year | 100 | 98 | 84
Consumer |  |  |
Activity in allowance for loan losses |  |  |
Balance, beginning of year | 3,997 | 3,611 | 3,123
Provision for loan losses | (167) | 528 | 705
Charge-offs | (541) | (440) | (346)
Recoveries | 177 | 298 | 129
Balance, end of year | 3,466 | 3,997 | 3,611
Consumer | Residential Mortgage |  |  |
Activity in allowance for loan losses |  |  |
Balance, beginning of year | 3,753 | 3,400 | 2,979
Provision for loan losses | (347) | 363 | 531
Charge-offs | (386) | (148) | (180)
Recoveries | 127 | 138 | 70
Balance, end of year | 3,147 | 3,753 | 3,400
Consumer | Installment and Other |  |  |
Activity in allowance for loan losses |  |  |
Balance, beginning of year | 244 | 211 | 144
Provision for loan losses | 180 | 165 | 174
Charge-offs | (155) | (292) | (166)
Recoveries | 50 | 160 | 59
Balance, end of year | $ 319 | $ 244 | $ 211

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- Definition Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 + Details
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- Definition Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953423-111524 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.7(d)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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