Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Loan Composition) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Receivables [Abstract]
Commercial real estate — owner occupied	$ 203,476	$ 200,387
Commercial real estate — non-owner occupied	484,427	470,236
Land development	42,666	40,154
Construction	161,562	125,157
Multi-family	167,868	136,978
1-4 family	34,340	44,976
Total commercial real estate	1,094,339	1,017,888
Commercial and industrial	462,321	429,002
Direct financing leases, net	33,170	30,787
Home equity and second mortgages	8,438	7,262
Other	20,789	18,099
Total consumer and other	29,227	25,361
Total gross loans and leases receivable	1,619,057	1,503,038
Allowance for loan and lease losses	20,425	18,763	$ 20,912	$ 16,316
Deferred loan fees	1,402	1,443
Loans and leases receivable, net	$ 1,597,230	$ 1,482,832

Commercial Real Estate Loans Receivable - 1-4 Family

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Commercial Real Estate Loans Receivable - Multi-Family

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Commercial Real Estate Loans Receivable - Non-Owner Occupied

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Commercial Real Estate Loans Receivable - Owner Occupied

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Loans and lease receivable, gross Home equity loans and second mortgage loans

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Loans and Leases Receivable, Gross, Total Consumer and Other

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The net investment in direct financing leases as of the balance sheet date consisting of: (a) minimum lease payments due on direct financing leases, (b) unguaranteed residual value, and (c) any unamortized initial direct costs; less: (i) executory costs, (ii) unearned income, and (iii) the accumulated allowance for uncollectible minimum lease payments.

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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 before allowance of consumer loans and leases not otherwise specified in the taxonomy. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes 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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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements and loans held for sale.

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Amount before allowance of loans issued to commercial and industrial institutions. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes real estate loans and loans covered under loss sharing agreements.

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Amount before allowance of commercial construction loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans covered under loss sharing agreements.

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Amount before allowance of commercial loans to develop land for sale or construction thereon. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans covered under loss sharing agreements.

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Amount before allowance of commercial loans issued to businesses to acquire, develop, construct, improve, or refinance land or building. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans covered under loss sharing agreements.

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