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REVENUE FROM CONTRACTS WITH CUSTOMERS - Revenue By Operating Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Disaggregation of Revenue [Line Items] |  |  |  |
Gains (losses) on sales of other real estate | $ (1) | $ 123 | $ (87) | $ 119
Net gains on sales of loans held for sale | 69 | 79 | 146 | 184
Net gains on security transactions | 0 | 0 | 19 | 0
Change in fair value of equity securities | (10) | 2,141 | 106 | 2,165
Total non-interest income | 4,956 | 7,381 | 14,967 | 18,181
Overdraft fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer, excluding assessed tax | 959 | 1,035 | 2,703 | 2,939
Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer, excluding assessed tax | 182 | 196 | 627 | 600
Interchange revenue from debit card transactions |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer, excluding assessed tax | 1,058 | 982 | 3,113 | 3,013
WMG fee income |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer, excluding assessed tax | 2,315 | 2,406 | 7,115 | 7,095
CFS fee and commission income |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer, excluding assessed tax | 145 | 120 | 502 | 365
Net gains (losses) on sales of OREO |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Gains (losses) on sales of other real estate | (1) | 123 | (87) | 119
Net gains on sales of loans |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net gains on sales of loans held for sale | 69 | 79 | 146 | 184
Loan servicing fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Fees and commissions, mortgage banking and servicing | 25 | 22 | 76 | 67
Sale of securities |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net gains on security transactions | 0 | 0 | 19 | 0
Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Other income | 214 | 277 | 647 | 1,634
Core Banking |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Change in fair value of equity securities | 3 | 2,140 | 103 | 2,148
Total non-interest income | 2,564 | 4,987 | 7,544 | 10,992
Core Banking | Overdraft fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer, excluding assessed tax | 959 | 1,035 | 2,703 | 2,939
Core Banking | Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer, excluding assessed tax | 182 | 196 | 627 | 600
Core Banking | Interchange revenue from debit card transactions |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer, excluding assessed tax | 1,058 | 982 | 3,113 | 3,013
Core Banking | WMG fee income |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer, excluding assessed tax | 0 | 0 | 0 | 0
Core Banking | CFS fee and commission income |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer, excluding assessed tax | 0 | 0 | 0 | 0
Core Banking | Net gains (losses) on sales of OREO |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Gains (losses) on sales of other real estate | (1) | 123 | (87) | 119
Core Banking | Net gains on sales of loans |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net gains on sales of loans held for sale | 69 | 79 | 146 | 184
Core Banking | Loan servicing fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Fees and commissions, mortgage banking and servicing | 25 | 22 | 76 | 67
Core Banking | Sale of securities |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net gains on security transactions | 0 | 0 | 19 | 0
Core Banking | Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Other income | 269 | 410 | 844 | 1,922
WMG |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Change in fair value of equity securities | 0 | 0 | 0 | 0
Total non-interest income | 2,315 | 2,406 | 7,115 | 7,095
WMG | Overdraft fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer, excluding assessed tax | 0 | 0 | 0 | 0
WMG | Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer, excluding assessed tax | 0 | 0 | 0 | 0
WMG | Interchange revenue from debit card transactions |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer, excluding assessed tax | 0 | 0 | 0 | 0
WMG | WMG fee income |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer, excluding assessed tax | 2,315 | 2,406 | 7,115 | 7,095
WMG | CFS fee and commission income |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer, excluding assessed tax | 0 | 0 | 0 | 0
WMG | Net gains (losses) on sales of OREO |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Gains (losses) on sales of other real estate | 0 | 0 | 0 | 0
WMG | Net gains on sales of loans |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net gains on sales of loans held for sale | 0 | 0 | 0 | 0
WMG | Loan servicing fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Fees and commissions, mortgage banking and servicing | 0 | 0 | 0 | 0
WMG | Sale of securities |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net gains on security transactions | 0 | 0 | 0 | 0
WMG | Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Other income | 0 | 0 | 0 | 0
Holding Company, CFS, and CRM |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Change in fair value of equity securities | (13) | 1 | 3 | 17
Total non-interest income | 77 | (12) | 308 | 94
Holding Company, CFS, and CRM | Overdraft fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer, excluding assessed tax | 0 | 0 | 0 | 0
Holding Company, CFS, and CRM | Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer, excluding assessed tax | 0 | 0 | 0 | 0
Holding Company, CFS, and CRM | Interchange revenue from debit card transactions |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer, excluding assessed tax | 0 | 0 | 0 | 0
Holding Company, CFS, and CRM | WMG fee income |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer, excluding assessed tax | 0 | 0 | 0 | 0
Holding Company, CFS, and CRM | CFS fee and commission income |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue from contract with customer, excluding assessed tax | 145 | 120 | 502 | 365
Holding Company, CFS, and CRM | Net gains (losses) on sales of OREO |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Gains (losses) on sales of other real estate | 0 | 0 | 0 | 0
Holding Company, CFS, and CRM | Net gains on sales of loans |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net gains on sales of loans held for sale | 0 | 0 | 0 | 0
Holding Company, CFS, and CRM | Loan servicing fees |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Fees and commissions, mortgage banking and servicing | 0 | 0 | 0 | 0
Holding Company, CFS, and CRM | Sale of securities |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Net gains on security transactions | 0 | 0 | 0 | 0
Holding Company, CFS, and CRM | Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Other income | $ (55) | $ (133) | $ (197) | $ (288)

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