Loans (Past Due Financing Receivables) (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current	$ 1,138,334	$ 1,080,243
Past Due	11,710	8,739
Total Loan Receivables	1,150,044	1,088,982
31 - 60 Days [Member]
Past Due	1,923	503
61 - 89 Days [Member]
Past Due	7,304	531
90 or Greater Days [Member]
Past Due	2,483	7,705
Commercial Real Estate Portfolio Segment [Member]
Current	719,455	664,250
Past Due	7,859	2,855
Total Loan Receivables	727,314	667,105
Commercial Real Estate Portfolio Segment [Member] \| 61 - 89 Days [Member]
Past Due	6,711	484
Commercial Real Estate Portfolio Segment [Member] \| 90 or Greater Days [Member]
Past Due	1,148	2,371
Residential First Mortgages Portfolio Segment [Member]
Current	169,828	170,381
Past Due	546	623
Total Loan Receivables	170,374	171,004
Residential First Mortgages Portfolio Segment [Member] \| 61 - 89 Days [Member]
Past Due	68
Residential First Mortgages Portfolio Segment [Member] \| 90 or Greater Days [Member]
Past Due	478	623
Residential Rentals Portfolio Segment [Member]
Current	109,937	101,309
Past Due	291	588
Total Loan Receivables	110,228	101,897
Residential Rentals Portfolio Segment [Member] \| 61 - 89 Days [Member]
Past Due	207	11
Residential Rentals Portfolio Segment [Member] \| 90 or Greater Days [Member]
Past Due	84	577
Construction And Land Development Portfolio Segment [Member]
Current	27,871	33,886
Past Due		3,048
Total Loan Receivables	27,871	36,934
Construction And Land Development Portfolio Segment [Member] \| 90 or Greater Days [Member]
Past Due		3,048
Home Equity And Second Mortgages Portfolio Segment [Member]
Current	21,180	21,175
Past Due	171	224
Total Loan Receivables	21,351	21,399
Home Equity And Second Mortgages Portfolio Segment [Member] \| 31 - 60 Days [Member]
Past Due	19	130
Home Equity And Second Mortgages Portfolio Segment [Member] \| 61 - 89 Days [Member]
Past Due	18	33
Home Equity And Second Mortgages Portfolio Segment [Member] \| 90 or Greater Days [Member]
Past Due	134	61
Commercial Portfolio Segment [Member]
Current	55,054	49,778
Past Due	1,363	706
Total Loan Receivables	56,417	50,484
Commercial Portfolio Segment [Member] \| 31 - 60 Days [Member]
Past Due	892	331
Commercial Portfolio Segment [Member] \| 61 - 89 Days [Member]
Past Due	299
Commercial Portfolio Segment [Member] \| 90 or Greater Days [Member]
Past Due	172	375
Consumer Portfolio Segment [Member]
Current	572	420
Past Due	1	2
Total Loan Receivables	573	422
Consumer Portfolio Segment [Member] \| 61 - 89 Days [Member]
Past Due	1	2
Commercial Equipment Portfolio Segment [Member]
Current	34,437	39,044
Past Due	1,479	693
Total Loan Receivables	35,916	39,737
Commercial Equipment Portfolio Segment [Member] \| 31 - 60 Days [Member]
Past Due	1,012	42
Commercial Equipment Portfolio Segment [Member] \| 61 - 89 Days [Member]
Past Due		1
Commercial Equipment Portfolio Segment [Member] \| 90 or Greater Days [Member]
Past Due	$ 467	$ 650

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=84173941&loc=SL6953401-111524

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- Definition

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

+ References

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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=82891408&loc=d3e4428-111522

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