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LOANS AND LEASES AND ALLOWANCE FOR LOAN AND LEASE LOSSES - Summary of TDR Modification Type (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018 USD ($) Loan	Dec. 31, 2017 USD ($) Loan	Dec. 31, 2016 USD ($) Loan
Commercial | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	2	1	0
Post-Modification Outstanding Recorded Investment | $	$ 163	$ 2,706	$ 0
Commercial | Commercial and industrial | Change in Principal Payments and Interest Rates
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	0	0
Post-Modification Outstanding Recorded Investment | $	$ 0	$ 0
Commercial | Commercial and industrial | Change in Principal Payments
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	2	1
Post-Modification Outstanding Recorded Investment | $	$ 163	$ 2,706
Commercial | Commercial and industrial | Change in Interest Rates
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	0	0
Post-Modification Outstanding Recorded Investment | $	$ 0	$ 0
Commercial | Commercial and industrial | Chapter 7 Bankruptcy
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	0	0
Post-Modification Outstanding Recorded Investment | $	$ 0	$ 0
Commercial | Commercial and industrial | Other
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	0	0
Post-Modification Outstanding Recorded Investment | $	$ 0	$ 0
Commercial | SBA
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	1	0	0
Post-Modification Outstanding Recorded Investment | $	$ 187	$ 0	$ 0
Commercial | SBA | Change in Principal Payments and Interest Rates
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	0
Post-Modification Outstanding Recorded Investment | $	$ 0
Commercial | SBA | Change in Principal Payments
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	0
Post-Modification Outstanding Recorded Investment | $	$ 0
Commercial | SBA | Change in Interest Rates
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	0
Post-Modification Outstanding Recorded Investment | $	$ 0
Commercial | SBA | Chapter 7 Bankruptcy
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	0
Post-Modification Outstanding Recorded Investment | $	$ 0
Commercial | SBA | Other
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	1
Post-Modification Outstanding Recorded Investment | $	$ 187
Consumer
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	3	4	42
Post-Modification Outstanding Recorded Investment | $	$ 350	$ 5,139	$ 10,273
Consumer | Change in Principal Payments and Interest Rates
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	0	2	34
Post-Modification Outstanding Recorded Investment | $	$ 0	$ 1,290	$ 8,622
Consumer | Change in Principal Payments
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	2	2	4
Post-Modification Outstanding Recorded Investment | $	$ 163	$ 3,849	$ 780
Consumer | Change in Interest Rates
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	0	0	2
Post-Modification Outstanding Recorded Investment | $	$ 0	$ 0	$ 146
Consumer | Chapter 7 Bankruptcy
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	0	0	1
Post-Modification Outstanding Recorded Investment | $	$ 0	$ 0	$ 519
Consumer | Other
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	1	0	1
Post-Modification Outstanding Recorded Investment | $	$ 187	$ 0	$ 206
Consumer | Single family residential mortgage
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan	0	3	42
Post-Modification Outstanding Recorded Investment | $	$ 0	$ 2,433	$ 10,273
Consumer | Single family residential mortgage | Change in Principal Payments and Interest Rates
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan		2	34
Post-Modification Outstanding Recorded Investment | $		$ 1,290	$ 8,622
Consumer | Single family residential mortgage | Change in Principal Payments
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan		1	4
Post-Modification Outstanding Recorded Investment | $		$ 1,143	$ 780
Consumer | Single family residential mortgage | Change in Interest Rates
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan		0	2
Post-Modification Outstanding Recorded Investment | $		$ 0	$ 146
Consumer | Single family residential mortgage | Chapter 7 Bankruptcy
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan		0	1
Post-Modification Outstanding Recorded Investment | $		$ 0	$ 519
Consumer | Single family residential mortgage | Other
Financing Receivable, Modifications [Line Items]
Number of Loans | Loan		0	1
Post-Modification Outstanding Recorded Investment | $		$ 0	$ 206

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-Topic 310
-SubTopic 10
-Section 50
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