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LOANS AND ALLOWANCE FOR LOAN LOSSES - Summary of Average Recorded Investment in Impaired Loans and Related Interest Income (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Financing Receivable, Impaired [Line Items] |  |  |
Average Impaired Balance | $ 15,118 | $ 14,346 | $ 20,201
Interest Income Recognized | 33 | 174 | 274
Commercial real estate | Owner-occupied |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Average Impaired Balance | 1,758 | 2,613 | 3,740
Interest Income Recognized | 0 | 0 | 20
Commercial real estate | Non-owner occupied |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Average Impaired Balance | 6,831 | 3,470 | 6,711
Interest Income Recognized | 0 | 0 | 143
Commercial real estate | Multi-family |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Average Impaired Balance | 216 | 402 | 274
Interest Income Recognized | 0 | 0 | 2
Commercial real estate | Non-owner occupied residential |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Average Impaired Balance | 645 | 1,020 | 2,095
Interest Income Recognized | 0 | 0 | 13
Acquisition and development | Commercial and land development |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Average Impaired Balance | 3 | 266 | 1,250
Interest Income Recognized | 0 | 137 | 34
Commercial and industrial |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Average Impaired Balance | 575 | 1,208 | 1,700
Interest Income Recognized | 0 | 0 | 5
Residential mortgage | First lien |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Average Impaired Balance | 4,525 | 4,644 | 4,226
Interest Income Recognized | 33 | 37 | 53
Residential mortgage | Home equity – term |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Average Impaired Balance | 98 | 130 | 85
Interest Income Recognized | 0 | 0 | 0
Residential mortgage | Home equity – lines of credit |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Average Impaired Balance | 455 | 571 | 111
Interest Income Recognized | 0 | 0 | 3
Installment and other loans |  |  |
Financing Receivable, Impaired [Line Items] |  |  |
Average Impaired Balance | 12 | 22 | 9
Interest Income Recognized | $ 0 | $ 0 | $ 1

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