Loans and Leases - Aging Analysis of Past Due Payments for Each Loan Portfolio Segment (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015
Aging analysis of past due payments for each loan portfolio segment [Abstract]
Current	$ 594,247	$ 490,531
Total	602,009	499,103
Non-accrual	6,000	5,500
Interest income lost on non-accrual loans	583	703
Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing	0
Financing Receivables, 30 to 59 Days Past Due [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
Financing Receivable, Recorded Investment, Past Due	1,742	2,802
Financing Receivables, 60 to 89 Days Past Due [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
Financing Receivable, Recorded Investment, Past Due	978	937
Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
Financing Receivable, Recorded Investment, Past Due	5,042	4,833
Commercial real estate [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
Current	260,168	224,088
Total	261,561	225,679
Commercial real estate [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
Financing Receivable, Recorded Investment, Past Due		96
Commercial real estate [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
Financing Receivable, Recorded Investment, Past Due	507
Commercial real estate [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
Financing Receivable, Recorded Investment, Past Due	886	1,495
Construction and land development [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
Current	83,225	47,332
Total	83,369	47,984
Construction and land development [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
Financing Receivable, Recorded Investment, Past Due		507
Construction and land development [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
Financing Receivable, Recorded Investment, Past Due	144	145
Commercial and industrial [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
Current	107,190	83,787
Total	108,146	85,980
Commercial and industrial [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
Financing Receivable, Recorded Investment, Past Due	416	1,092
Commercial and industrial [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
Financing Receivable, Recorded Investment, Past Due	367	592
Commercial and industrial [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
Financing Receivable, Recorded Investment, Past Due	173	509
Multi-family [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
Current	23,389	16,249
Total	23,389	16,249
Residential real estate [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
Current	55,566	50,022
Total	56,899	51,588
Residential real estate [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
Financing Receivable, Recorded Investment, Past Due	978	788
Residential real estate [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
Financing Receivable, Recorded Investment, Past Due		306
Residential real estate [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
Financing Receivable, Recorded Investment, Past Due	355	472
Leases [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
Current	59,809	62,896
Total	61,838	64,341
Leases [Member] \| Financing Receivables, 30 to 59 Days Past Due [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
Financing Receivable, Recorded Investment, Past Due	348	319
Leases [Member] \| Financing Receivables, 60 to 89 Days Past Due [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
Financing Receivable, Recorded Investment, Past Due	104	39
Leases [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
Financing Receivable, Recorded Investment, Past Due	1,577	1,087
Tax certificates [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
Current	1,798	3,630
Total	3,705	4,755
Tax certificates [Member] \| Financing Receivables, Equal to Greater than 90 Days Past Due [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
Financing Receivable, Recorded Investment, Past Due	1,907	1,125
Consumer [Member]
Aging analysis of past due payments for each loan portfolio segment [Abstract]
Current	3,102	2,527
Total	$ 3,102	$ 2,527

Recorded investment in financing receivables that are 90 days or more past due and still accruing.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Recorded Investment
-URI http://asc.fasb.org/extlink&oid=65880944

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5111-111524

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- References

No definition available.

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- Definition

Financing receivables that are current.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7A
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953401-111524

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Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date.

+ References

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- Definition

Recorded Investment in financing receivables that are past due at the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Recorded Investment
-URI http://asc.fasb.org/extlink&oid=65880944

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 7A
-URI http://asc.fasb.org/extlink&oid=66008989&loc=SL6953401-111524

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Reflects the amount of additional interest income that would have been recorded if impaired or nonperforming loans were instead current, in compliance with their original terms, and outstanding throughout the reporting period or since origination (if held for part of the period).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 40
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=25495931&loc=d3e18794-111554

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Amount before allowance and after 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=65884687&loc=d3e4428-111522

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5074-111524

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