Loans Impaired Loans (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Recorded Investment [Abstract]
With No Related Allowance	$ 3,286	$ 3,782
With a Related Allowance	0	559
Unpaid Principal Balance [Abstract]
With No Related Allowance	3,316	3,782
With a Related Allowance	0	559
Average Recorded Balance [Abstract]
With No Related Allowance	3,535	3,634	$ 4,178
With a Related Allowance	280	546	694
Interest Income Recognized [Abstract]
With No Related Allowance	23	19	21
With a Related Allowance	0	0	0
Cash Basis Income [Abstract]
With No Related Allowance	0	0	0
With a Related Allowance	0	0	0
Impaired Financing Receivable, Related Allowance	0
Commercial [Member]
Recorded Investment [Abstract]
With No Related Allowance	155	494
With a Related Allowance	0	0
Unpaid Principal Balance [Abstract]
With No Related Allowance	155	494
With a Related Allowance	0	0
Average Recorded Balance [Abstract]
With No Related Allowance	325	348	133
With a Related Allowance	0	0	694
Interest Income Recognized [Abstract]
With No Related Allowance	0	11	4
With a Related Allowance	0	0	0
Cash Basis Income [Abstract]
With No Related Allowance	0	0	0
With a Related Allowance	0	0	0
Impaired Financing Receivable, Related Allowance	0
Commercial Real Estate [Member]
Recorded Investment [Abstract]
With No Related Allowance	2,372	1,492
With a Related Allowance	0	0
Unpaid Principal Balance [Abstract]
With No Related Allowance	2,372	1,492
With a Related Allowance	0	0
Average Recorded Balance [Abstract]
With No Related Allowance	1,932	1,492	2,157
With a Related Allowance	0	0	0
Interest Income Recognized [Abstract]
With No Related Allowance	9	0	0
With a Related Allowance	0	0	0
Cash Basis Income [Abstract]
With No Related Allowance	0	0	0
With a Related Allowance	0	0	0
Impaired Financing Receivable, Related Allowance	0
Other Consumer [Member]
Recorded Investment [Abstract]
With No Related Allowance	114	118
With a Related Allowance	0	0
Unpaid Principal Balance [Abstract]
With No Related Allowance	144	118
With a Related Allowance	0	0
Average Recorded Balance [Abstract]
With No Related Allowance	116	121	188
With a Related Allowance	0	0	0
Interest Income Recognized [Abstract]
With No Related Allowance	14	7	9
With a Related Allowance	0	0	0
Cash Basis Income [Abstract]
With No Related Allowance	0	0	0
With a Related Allowance	0	0	0
Impaired Financing Receivable, Related Allowance	0
Residential Portfolio Segment [Member]
Recorded Investment [Abstract]
With No Related Allowance	645	1,678
With a Related Allowance	0	559
Unpaid Principal Balance [Abstract]
With No Related Allowance	645	1,678
With a Related Allowance	0	559
Average Recorded Balance [Abstract]
With No Related Allowance	1,162	1,673	1,700
With a Related Allowance	280	546	0
Interest Income Recognized [Abstract]
With No Related Allowance	0	1	8
With a Related Allowance	0	0	0
Cash Basis Income [Abstract]
With No Related Allowance	0	0	0
With a Related Allowance	0	$ 0	$ 0
Impaired Financing Receivable, Related Allowance	$ 0

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5258-111524

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