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Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Non-accrual Loans) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Financing Receivable, Impaired [Line Items]
Non-accruing loans and leases	$ 20,613	$ 25,301
Foreclosed properties, net	2,919	2,547
Total non-performing assets	23,532	27,848
Performing troubled debt restructurings	140	180
Total impaired assets	$ 23,672	$ 28,028
Total non-accrual loans and leases to gross loans and leases	1.20%	1.56%
Total non-performing assets to total gross loans and leases plus foreclosed properties, net	1.37%	1.72%
Total non-performing assets to total assets	1.12%	1.42%
Allowance for loan and lease losses to gross loans and leases	1.14%	1.26%
Allowance for loan and lease losses to non-accrual loans and leases	94.70%	80.73%
Commercial real estate — owner occupied
Financing Receivable, Impaired [Line Items]
Non-accruing loans and leases	$ 4,032	$ 5,663
Commercial real estate — non-owner occupied
Financing Receivable, Impaired [Line Items]
Non-accruing loans and leases	0	31
Land development
Financing Receivable, Impaired [Line Items]
Non-accruing loans and leases	1,526	2,213
Construction
Financing Receivable, Impaired [Line Items]
Non-accruing loans and leases	0	0
Multi-family
Financing Receivable, Impaired [Line Items]
Non-accruing loans and leases	0	0
1-4 family
Financing Receivable, Impaired [Line Items]
Non-accruing loans and leases	333	0
Total commercial real estate
Financing Receivable, Impaired [Line Items]
Non-accruing loans and leases	5,891	7,907
Commercial and industrial
Financing Receivable, Impaired [Line Items]
Non-accruing loans and leases	14,575	17,104
Direct financing leases, net
Financing Receivable, Impaired [Line Items]
Non-accruing loans and leases	0	0
Home equity and second mortgages
Financing Receivable, Impaired [Line Items]
Non-accruing loans and leases	0	0
Other
Financing Receivable, Impaired [Line Items]
Non-accruing loans and leases	147	290
Total consumer and other
Financing Receivable, Impaired [Line Items]
Non-accruing loans and leases	$ 147	$ 290

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Ratio of Allowance for Loan and Lease Losses to Total Gross Loans and Leases

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Carrying amount as of the balance sheet date of all assets obtained in full or partial satisfaction of a debt arrangement through foreclosure proceedings or defeasance; includes real and personal property; equity interests in corporations, partnerships, and joint ventures; and beneficial interests in trusts.

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