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Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Loan Composition) (Details) - USD ($) $ in Thousands	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2017
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, before Fees, Gross	$ 1,721,169		$ 1,619,057
Allowance for loan and lease losses	20,170	$ 19,819	20,425	$ 20,455	$ 20,932	$ 18,763
Deferred loan fees	627		1,402
Loans and leases receivable, net amount	1,700,372		1,597,230
Commercial real estate — owner occupied
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, before Fees, Gross	226,307		203,476
Commercial real estate — non-owner occupied
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, before Fees, Gross	503,102		484,427
Land development
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, before Fees, Gross	49,184		42,666
Construction
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, before Fees, Gross	111,848		161,562
Multi-family
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, before Fees, Gross	227,330		167,868
1-4 family
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, before Fees, Gross	31,226		34,340
Total commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, before Fees, Gross	1,148,997		1,094,339
Allowance for loan and lease losses	11,138	11,269	11,662	11,693	11,147	10,131
Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, before Fees, Gross	513,672		462,321
Direct financing leases, net
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, before Fees, Gross	28,987		33,170
Home equity and second mortgages
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, before Fees, Gross	7,373		8,438
Other
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, before Fees, Gross	22,140		20,789
Total consumer and other
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, before Fees, Gross	29,513		29,227
Allowance for loan and lease losses	$ 621	$ 658	$ 684	$ 878	$ 548	$ 407

X

- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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Amount of deferred interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. Excludes amounts for loans and leases covered under loss sharing agreements.

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