Annual report pursuant to Section 13 and 15(d)

SIGNIFICANT ACCOUNTING POLICIES - Loans and Leases (Details)

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SIGNIFICANT ACCOUNTING POLICIES - Loans and Leases (Details)
 12 Months Ended
Dec. 31, 2019
USD ($)
reserve
component
Financing Receivable, Past Due [Line Items]  
Allowance number of reserves | reserve 2
Allowance number of components of reserve | component 2
Commercial Portfolio Segment [Member]  
Financing Receivable, Past Due [Line Items]  
Threshold period past due for nonperforming status 90 days
Threshold past due for write-off 90 days
Threshold outstanding balance for quarterly impairment evaluation $ 1,000,000
Commercial Real Estate Portfolio Segment [Member]  
Financing Receivable, Past Due [Line Items]  
Threshold period past due for nonperforming status 90 days
Threshold past due for write-off 90 days
Threshold outstanding balance for quarterly impairment evaluation $ 1,000,000
Home Equity | First-lien home equity loan  
Financing Receivable, Past Due [Line Items]  
Threshold period past due for nonperforming status 150 days
Threshold past due for write-off 150 days
Home Equity | Junior-lien home equity loan  
Financing Receivable, Past Due [Line Items]  
Threshold past due for write-off 120 days
Automobile  
Financing Receivable, Past Due [Line Items]  
Threshold past due for write-off 120 days
Consumer  
Financing Receivable, Past Due [Line Items]  
Threshold past due for write-off 120 days
Residential Mortgage  
Financing Receivable, Past Due [Line Items]  
Threshold period past due for nonperforming status 150 days
Threshold past due for write-off 150 days