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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	Sep. 30, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment
Commercial real estate — owner occupied	$ 182,755	$ 176,459
Commercial real estate — non-owner occupied	461,586	473,158
Land development	41,499	56,638
Construction	115,660	101,206
Multi-family	125,080	92,762
1-4 family	40,173	45,651
Total commercial real estate	966,753	945,874
Commercial and industrial	447,223	450,298
Direct financing leases, net	28,868	30,951
Home equity and second mortgages	7,776	8,412
Other	17,447	16,329
Total consumer and other	25,223	24,741
Total gross loans and leases receivable	$ 1,468,067	$ 1,451,864
Category as a % of total portfolio	100.00%	100.00%
Category I
Financing Receivable, Recorded Investment
Commercial real estate — owner occupied	$ 147,603	$ 142,704
Commercial real estate — non-owner occupied	438,874	447,895
Land development	37,659	52,082
Construction	109,102	93,510
Multi-family	125,080	87,418
1-4 family	29,051	38,504
Total commercial real estate	887,369	862,113
Commercial and industrial	348,179	348,201
Direct financing leases, net	26,854	29,351
Home equity and second mortgages	7,764	8,271
Other	17,066	15,714
Total consumer and other	24,830	23,985
Total gross loans and leases receivable	$ 1,287,232	$ 1,263,650
Category as a % of total portfolio	87.68%	87.04%
Category II
Financing Receivable, Recorded Investment
Commercial real estate — owner occupied	$ 19,324	$ 20,294
Commercial real estate — non-owner occupied	19,769	20,933
Land development	795	823
Construction	773	3,154
Multi-family	0	1,937
1-4 family	7,824	3,144
Total commercial real estate	48,485	50,285
Commercial and industrial	26,605	42,949
Direct financing leases, net	305	1,600
Home equity and second mortgages	0	121
Other	0	0
Total consumer and other	0	121
Total gross loans and leases receivable	$ 75,395	$ 94,955
Category as a % of total portfolio	5.14%	6.54%
Category III
Financing Receivable, Recorded Investment
Commercial real estate — owner occupied	$ 8,690	$ 11,174
Commercial real estate — non-owner occupied	1,117	2,721
Land development	275	293
Construction	431	1,624
Multi-family	0	3,407
1-4 family	1,233	1,431
Total commercial real estate	11,746	20,650
Commercial and industrial	58,470	46,675
Direct financing leases, net	1,709	0
Home equity and second mortgages	8	12
Other	0	11
Total consumer and other	8	23
Total gross loans and leases receivable	$ 71,933	$ 67,348
Category as a % of total portfolio	4.90%	4.64%
Category IV
Financing Receivable, Recorded Investment
Commercial real estate — owner occupied	$ 7,138	$ 2,287
Commercial real estate — non-owner occupied	1,826	1,609
Land development	2,770	3,440
Construction	5,354	2,918
Multi-family	0	0
1-4 family	2,065	2,572
Total commercial real estate	19,153	12,826
Commercial and industrial	13,969	12,473
Direct financing leases, net	0	0
Home equity and second mortgages	4	8
Other	381	604
Total consumer and other	385	612
Total gross loans and leases receivable	$ 33,507	$ 25,911
Category as a % of total portfolio	2.28%	1.78%

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