Loans and Allowance for Loan Losses - Aging of Past Due Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Aging of the recorded investment in past due loans
Total Past Due	$ 301	$ 1,045
Current	346,712	329,737
Loans and Leases Receivable, Gross, Total	347,013	330,782
Commercial
Aging of the recorded investment in past due loans
Loans and Leases Receivable, Gross, Total	55,132	53,516
Commercial Real Estate
Aging of the recorded investment in past due loans
Loans and Leases Receivable, Gross, Total	206,848	193,457
Residential Real Estate
Aging of the recorded investment in past due loans
Loans and Leases Receivable, Gross, Total	81,306	79,680
Consumer
Aging of the recorded investment in past due loans
Loans and Leases Receivable, Gross, Total	3,727	4,129
Commercial \| Commercial
Aging of the recorded investment in past due loans
Total Past Due	238
Current	54,894	53,516
Loans and Leases Receivable, Gross, Total	55,132	53,516
Real estate \| Residential Real Estate
Aging of the recorded investment in past due loans
Total Past Due	63	427
Current	81,243	79,253
Loans and Leases Receivable, Gross, Total	81,306	79,680
Construction \| Commercial Real Estate
Aging of the recorded investment in past due loans
Current	28,511	24,167
Loans and Leases Receivable, Gross, Total	28,511	24,167
Auto \| Consumer
Aging of the recorded investment in past due loans
Total Past Due		1
Current	1,242	1,424
Loans and Leases Receivable, Gross, Total	1,242	1,425
Other \| Commercial Real Estate
Aging of the recorded investment in past due loans
Total Past Due		617
Current	178,337	168,673
Loans and Leases Receivable, Gross, Total	178,337	169,290
Other \| Consumer
Aging of the recorded investment in past due loans
Current	2,485	2,704
Loans and Leases Receivable, Gross, Total	2,485	2,704
30 to 59 Days Past Due
Aging of the recorded investment in past due loans
Total Past Due	88	508
30 to 59 Days Past Due \| Commercial \| Commercial
Aging of the recorded investment in past due loans
Total Past Due	88
30 to 59 Days Past Due \| Real estate \| Residential Real Estate
Aging of the recorded investment in past due loans
Total Past Due		329
30 to 59 Days Past Due \| Auto \| Consumer
Aging of the recorded investment in past due loans
Total Past Due		1
30 to 59 Days Past Due \| Other \| Commercial Real Estate
Aging of the recorded investment in past due loans
Total Past Due		178
60 to 89 Days Past Due
Aging of the recorded investment in past due loans
Total Past Due	14
60 to 89 Days Past Due \| Real estate \| Residential Real Estate
Aging of the recorded investment in past due loans
Total Past Due	14
Over 90 Days Past Due
Aging of the recorded investment in past due loans
Total Past Due	199	537
Over 90 Days Past Due \| Commercial \| Commercial
Aging of the recorded investment in past due loans
Total Past Due	150
Over 90 Days Past Due \| Real estate \| Residential Real Estate
Aging of the recorded investment in past due loans
Total Past Due	$ 49	98
Over 90 Days Past Due \| Other \| Commercial Real Estate
Aging of the recorded investment in past due loans
Total Past Due		$ 439

Financing receivables that are current.

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 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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No definition available.

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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.

+ 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

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