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Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Loans by Credit Quality Indicator) (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Financing Receivable, Recorded Investment [Line Items]
Commercial real estate — owner occupied	$ 176,459	$ 176,322
Commercial real estate — non-owner occupied	473,158	436,901
Land development	56,638	59,779
Construction	101,206	100,625
Multi-family	92,762	80,254
1-4 family	45,651	50,304
Total commercial real estate	945,874	904,185
Commercial and industrial	450,298	472,193
Direct financing leases, net	30,951	31,093
Home equity and second mortgages	8,412	8,237
Other	16,329	16,319
Total consumer and other	24,741	24,556
Total gross loans and leases receivable	$ 1,451,864	$ 1,432,027
Category as a % of total portfolio	100.00%	100.00%
Category I
Financing Receivable, Recorded Investment [Line Items]
Commercial real estate — owner occupied	$ 142,704	$ 156,379
Commercial real estate — non-owner occupied	447,895	410,517
Land development	52,082	52,817
Construction	93,510	98,693
Multi-family	87,418	79,368
1-4 family	38,504	41,086
Total commercial real estate	862,113	838,860
Commercial and industrial	348,201	430,199
Direct financing leases, net	29,351	29,514
Home equity and second mortgages	8,271	7,497
Other	15,714	15,616
Total consumer and other	23,985	23,113
Total gross loans and leases receivable	$ 1,263,650	$ 1,321,686
Category as a % of total portfolio	87.04%	92.29%
Category II
Financing Receivable, Recorded Investment [Line Items]
Commercial real estate — owner occupied	$ 20,294	$ 7,654
Commercial real estate — non-owner occupied	20,933	20,662
Land development	823	2,241
Construction	3,154	851
Multi-family	1,937	884
1-4 family	3,144	3,985
Total commercial real estate	50,285	36,277
Commercial and industrial	42,949	7,139
Direct financing leases, net	1,600	1,013
Home equity and second mortgages	121	0
Other	0	48
Total consumer and other	121	48
Total gross loans and leases receivable	$ 94,955	$ 44,477
Category as a % of total portfolio	6.54%	3.11%
Category III
Financing Receivable, Recorded Investment [Line Items]
Commercial real estate — owner occupied	$ 11,174	$ 9,311
Commercial real estate — non-owner occupied	2,721	3,408
Land development	293	309
Construction	1,624	564
Multi-family	3,407	0
1-4 family	1,431	1,865
Total commercial real estate	20,650	15,457
Commercial and industrial	46,675	25,706
Direct financing leases, net	0	528
Home equity and second mortgages	12	141
Other	11	0
Total consumer and other	23	141
Total gross loans and leases receivable	$ 67,348	$ 41,832
Category as a % of total portfolio	4.64%	2.92%
Category IV
Financing Receivable, Recorded Investment [Line Items]
Commercial real estate — owner occupied	$ 2,287	$ 2,978
Commercial real estate — non-owner occupied	1,609	2,314
Land development	3,440	4,412
Construction	2,918	517
Multi-family	0	2
1-4 family	2,572	3,368
Total commercial real estate	12,826	13,591
Commercial and industrial	12,473	9,149
Direct financing leases, net	0	38
Home equity and second mortgages	8	599
Other	604	655
Total consumer and other	612	1,254
Total gross loans and leases receivable	$ 25,911	$ 24,032
Category as a % of total portfolio	1.78%	1.68%

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