Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Past Due Loans) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014
Financing Receivable, Recorded Investment, Aging [Abstract]
30-59 days past due	$ 239	$ 364
60-89 days past due	157	660
Greater than 90 days past due	3,053	1,762
Total past due	3,449	2,786
Current	1,294,618	1,279,006
Non-accrual loans and leases	9,352	9,792
Total gross loans and leases receivable	1,298,067	1,281,792	986,221
30 to 59 days past due, percent of total portfolio	0.02%	0.03%
60 to 89 days past due, percent of total portfolio	0.01%	0.05%
Greater than 90 days past due, percent of portfolio	0.24%	0.14%
Past due, percent of total portfolio	0.27%	0.22%
Current, percent of total portfolio	99.73%	99.78%
Gross loans, percent of total portfolio	100.00%	100.00%
Commercial real estate — owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
30-59 days past due	0	0
60-89 days past due	0	0
Greater than 90 days past due	0	0
Total past due	0	0
Current	163,982	163,884
Non-accrual loans and leases	493	500
Total gross loans and leases receivable	163,982	163,884
Commercial real estate — non-owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
30-59 days past due	0	0
60-89 days past due	24	215
Greater than 90 days past due	214	0
Total past due	238	215
Current	404,693	417,747
Non-accrual loans and leases	286	286
Total gross loans and leases receivable	404,931	417,962
Construction and land development
Financing Receivable, Recorded Investment, Aging [Abstract]
30-59 days past due	0	0
60-89 days past due	0	193
Greater than 90 days past due	193	0
Total past due	193	193
Current	121,018	120,967
Non-accrual loans and leases	4,849	4,932
Total gross loans and leases receivable	121,211	121,160
Multi-family
Financing Receivable, Recorded Investment, Aging [Abstract]
30-59 days past due	0	0
60-89 days past due	0	0
Greater than 90 days past due	0	0
Total past due	0	0
Current	84,163	72,578
Non-accrual loans and leases	14	17
Total gross loans and leases receivable	84,163	72,578
1-4 family
Financing Receivable, Recorded Investment, Aging [Abstract]
30-59 days past due	238	0
60-89 days past due	0	106
Greater than 90 days past due	296	306
Total past due	534	412
Current	39,625	35,770
Non-accrual loans and leases	910	690
Total gross loans and leases receivable	40,159	36,182
Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
30-59 days past due	1	364
60-89 days past due	81	146
Greater than 90 days past due	1,647	736
Total past due	1,729	1,246
Current	424,684	415,408
Non-accrual loans and leases	1,774	2,318
Total gross loans and leases receivable	426,413	416,654	303,630
Direct financing leases, net
Financing Receivable, Recorded Investment, Aging [Abstract]
30-59 days past due	0	0
60-89 days past due	0	0
Greater than 90 days past due	0	0
Total past due	0	0
Current	31,644	34,165
Non-accrual loans and leases	0	0
Total gross loans and leases receivable	31,644	34,165	26,364
Home equity and second mortgages
Financing Receivable, Recorded Investment, Aging [Abstract]
30-59 days past due	0	0
60-89 days past due	52	0
Greater than 90 days past due	0	0
Total past due	52	0
Current	8,980	7,866
Non-accrual loans and leases	323	329
Total gross loans and leases receivable	9,032	7,866
Other
Financing Receivable, Recorded Investment, Aging [Abstract]
30-59 days past due	0	0
60-89 days past due	0	0
Greater than 90 days past due	703	720
Total past due	703	720
Current	15,829	10,621
Non-accrual loans and leases	703	720
Total gross loans and leases receivable	16,532	11,341
Accruing loans and leases
Financing Receivable, Recorded Investment, Aging [Abstract]
30-59 days past due	0	0
60-89 days past due	0	0
Greater than 90 days past due	0	0
Total past due	0	0
Current	1,288,715	1,272,000
Accrual loans and leases	1,288,715	1,272,000
Accruing loans and leases \| Commercial real estate — owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
30-59 days past due	0	0
60-89 days past due	0	0
Greater than 90 days past due	0	0
Total past due	0	0
Current	163,489	163,384
Accrual loans and leases	163,489	163,384
Accruing loans and leases \| Commercial real estate — non-owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
30-59 days past due	0	0
60-89 days past due	0	0
Greater than 90 days past due	0	0
Total past due	0	0
Current	404,645	417,676
Accrual loans and leases	404,645	417,676
Accruing loans and leases \| Construction and land development
Financing Receivable, Recorded Investment, Aging [Abstract]
30-59 days past due	0	0
60-89 days past due	0	0
Greater than 90 days past due	0	0
Total past due	0	0
Current	116,362	116,228
Accrual loans and leases	116,362	116,228
Accruing loans and leases \| Multi-family
Financing Receivable, Recorded Investment, Aging [Abstract]
30-59 days past due	0	0
60-89 days past due	0	0
Greater than 90 days past due	0	0
Total past due	0	0
Current	84,149	72,561
Accrual loans and leases	84,149	72,561
Accruing loans and leases \| 1-4 family
Financing Receivable, Recorded Investment, Aging [Abstract]
30-59 days past due	0	0
60-89 days past due	0	0
Greater than 90 days past due	0	0
Total past due	0	0
Current	39,249	35,492
Accrual loans and leases	39,249	35,492
Accruing loans and leases \| Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
30-59 days past due	0	0
60-89 days past due	0	0
Greater than 90 days past due	0	0
Total past due	0	0
Current	424,639	414,336
Accrual loans and leases	424,639	414,336
Accruing loans and leases \| Direct financing leases, net
Financing Receivable, Recorded Investment, Aging [Abstract]
30-59 days past due	0	0
60-89 days past due	0	0
Greater than 90 days past due	0	0
Total past due	0	0
Current	31,644	34,165
Accrual loans and leases	31,644	34,165
Accruing loans and leases \| Home equity and second mortgages
Financing Receivable, Recorded Investment, Aging [Abstract]
30-59 days past due	0	0
60-89 days past due	0	0
Greater than 90 days past due	0	0
Total past due	0	0
Current	8,709	7,537
Accrual loans and leases	8,709	7,537
Accruing loans and leases \| Other
Financing Receivable, Recorded Investment, Aging [Abstract]
30-59 days past due	0	0
60-89 days past due	0	0
Greater than 90 days past due	0	0
Total past due	0	0
Current	15,829	10,621
Accrual loans and leases	15,829	10,621
Non-accruing loans and leases
Financing Receivable, Recorded Investment, Aging [Abstract]
30-59 days past due	239	364
60-89 days past due	157	660
Greater than 90 days past due	3,053	1,762
Total past due	3,449	2,786
Current	5,903	7,006
Non-accrual loans and leases	9,352	9,792
Non-accruing loans and leases \| Commercial real estate — owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
30-59 days past due	0	0
60-89 days past due	0	0
Greater than 90 days past due	0	0
Total past due	0	0
Current	493	500
Non-accrual loans and leases	493	500
Non-accruing loans and leases \| Commercial real estate — non-owner occupied
Financing Receivable, Recorded Investment, Aging [Abstract]
30-59 days past due	0	0
60-89 days past due	24	215
Greater than 90 days past due	214	0
Total past due	238	215
Current	48	71
Non-accrual loans and leases	286	286
Non-accruing loans and leases \| Construction and land development
Financing Receivable, Recorded Investment, Aging [Abstract]
30-59 days past due	0	0
60-89 days past due	0	193
Greater than 90 days past due	193	0
Total past due	193	193
Current	4,656	4,739
Non-accrual loans and leases	4,849	4,932
Non-accruing loans and leases \| Multi-family
Financing Receivable, Recorded Investment, Aging [Abstract]
30-59 days past due	0	0
60-89 days past due	0	0
Greater than 90 days past due	0	0
Total past due	0	0
Current	14	17
Non-accrual loans and leases	14	17
Non-accruing loans and leases \| 1-4 family
Financing Receivable, Recorded Investment, Aging [Abstract]
30-59 days past due	238	0
60-89 days past due	0	106
Greater than 90 days past due	296	306
Total past due	534	412
Current	376	278
Non-accrual loans and leases	910	690
Non-accruing loans and leases \| Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
30-59 days past due	1	364
60-89 days past due	81	146
Greater than 90 days past due	1,647	736
Total past due	1,729	1,246
Current	45	1,072
Non-accrual loans and leases	1,774	2,318
Non-accruing loans and leases \| Direct financing leases, net
Financing Receivable, Recorded Investment, Aging [Abstract]
30-59 days past due	0	0
60-89 days past due	0	0
Greater than 90 days past due	0	0
Total past due	0	0
Current	0	0
Non-accrual loans and leases	0	0
Non-accruing loans and leases \| Home equity and second mortgages
Financing Receivable, Recorded Investment, Aging [Abstract]
30-59 days past due	0	0
60-89 days past due	52	0
Greater than 90 days past due	0	0
Total past due	52	0
Current	271	329
Non-accrual loans and leases	323	329
Non-accruing loans and leases \| Other
Financing Receivable, Recorded Investment, Aging [Abstract]
30-59 days past due	0	0
60-89 days past due	0	0
Greater than 90 days past due	703	720
Total past due	703	720
Current	0	0
Non-accrual loans and leases	$ 703	$ 720

Loan and Lease Receivables, Impaired Loans and Leases and Allowance for Loan and Lease Losses (Past Due Loans) (Details) (USD $)
In Thousands, unless otherwise specified