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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Allowance for Loan and Lease Losses (Details)	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Delinquency period	60 days
SBA
Financing Receivable, Modifications [Line Items]
Percentage of credit enhancement for loans up to $150,000	85.00%
Percentage of credit enhancement for loans greater than $150,000	75.00%

X

- Definition

Number of days delinquent at which a loan or lease is individually analyzed.

+ References

No definition available.

+ Details

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X

- Definition

Loans and Leases Receivable, Percentage of Credit Enhancement For Loans Up To $150,000

+ References

No definition available.

+ Details

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X

- Definition

Loans and Leases Receivable, Percentage of Credit Enhancement for Loans Greater than $150,000

+ References

No definition available.

+ Details

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X

- References

No definition available.

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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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