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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	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, before Fees, Gross	$ 1,720,799		$ 1,619,057
Allowance for loan and lease losses	19,819	$ 20,449	20,425	$ 20,932	$ 18,638	$ 18,763
Deferred loan fees	823		1,402
Loans and leases receivable, net amount	1,700,157		1,597,230
Commercial real estate — owner occupied
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, before Fees, Gross	210,471		203,476
Commercial real estate — non-owner occupied
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, before Fees, Gross	477,740		484,427
Land development
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, before Fees, Gross	49,000		42,666
Construction
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, before Fees, Gross	185,347		161,562
Multi-family
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, before Fees, Gross	195,363		167,868
1-4 family
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, before Fees, Gross	31,656		34,340
Total commercial real estate
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, before Fees, Gross	1,149,577		1,094,339
Allowance for loan and lease losses	11,269	11,205	11,662	11,147	9,990	10,131
Commercial and industrial
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, before Fees, Gross	510,448		462,321
Direct financing leases, net
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, before Fees, Gross	30,365		33,170
Home equity and second mortgages
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, before Fees, Gross	7,513		8,438
Other
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, before Fees, Gross	22,896		20,789
Total consumer and other
Loans and Leases Receivable Disclosure [Line Items]
Loans and Leases Receivable, before Fees, Gross	30,409		29,227
Allowance for loan and lease losses	$ 658	$ 759	$ 684	$ 548	$ 497	$ 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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