Allowance For Loan Losses (Allowance For Loan Losses By Segment) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	$ 4,505	$ 4,959	$ 4,959
Charge-Offs	(62)	(73)	(607)
Recoveries	502	38	341
(Recovery of) provision for loan losses	(527)	79	(188)
Ending Balance	4,418	5,003	4,505
Ending balance: Individually evaluated for impairment	366		385
Ending balance: collectively evaluated for impairment	4,052		4,120
Loans Ending Balance	519,358		516,942
Ending balance individually evaluated for impairment	12,028		13,380
Ending balance collectively evaluated for impairment	507,330		503,562
Construction and Farmland
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	450	775	775
Charge-Offs	0		0
Recoveries	482		144
(Recovery of) provision for loan losses	(519)		(469)
Ending Balance	413		450
Ending balance: Individually evaluated for impairment	0		0
Ending balance: collectively evaluated for impairment	413		450
Loans Ending Balance	33,894		31,791
Ending balance individually evaluated for impairment	338		1,320
Ending balance collectively evaluated for impairment	33,556		30,471
Residential
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	1,992	2,322	2,322
Charge-Offs	0		(535)
Recoveries	6		124
(Recovery of) provision for loan losses	(80)		81
Ending Balance	1,918		1,992
Ending balance: Individually evaluated for impairment	252		268
Ending balance: collectively evaluated for impairment	1,666		1,724
Loans Ending Balance	227,939		231,532
Ending balance individually evaluated for impairment	8,993		8,608
Ending balance collectively evaluated for impairment	218,946		222,924
Commercial Real Estate
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	1,522	1,268	1,268
Charge-Offs	0		0
Recoveries	1		8
(Recovery of) provision for loan losses	2		246
Ending Balance	1,525		1,522
Ending balance: Individually evaluated for impairment	100		102
Ending balance: collectively evaluated for impairment	1,425		1,420
Loans Ending Balance	210,413		208,525
Ending balance individually evaluated for impairment	2,152		2,864
Ending balance collectively evaluated for impairment	208,261		205,661
Commercial - Non Real Estate
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	235	211	211
Charge-Offs	(41)		0
Recoveries	1		11
(Recovery of) provision for loan losses	72		13
Ending Balance	267		235
Ending balance: Individually evaluated for impairment	14		15
Ending balance: collectively evaluated for impairment	253		220
Loans Ending Balance	33,282		30,341
Ending balance individually evaluated for impairment	536		581
Ending balance collectively evaluated for impairment	32,746		29,760
Consumer
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	69	109	109
Charge-Offs	(17)		(30)
Recoveries	11		49
(Recovery of) provision for loan losses	1		(59)
Ending Balance	64		69
Ending balance: Individually evaluated for impairment	0		0
Ending balance: collectively evaluated for impairment	64		69
Loans Ending Balance	11,836		12,677
Ending balance individually evaluated for impairment	9		7
Ending balance collectively evaluated for impairment	11,827		12,670
All Other Loans
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	22	53	53
Charge-Offs	(4)		(42)
Recoveries	1		5
(Recovery of) provision for loan losses	1		6
Ending Balance	20		22
Ending balance: Individually evaluated for impairment	0		0
Ending balance: collectively evaluated for impairment	20		22
Loans Ending Balance	1,994		2,076
Ending balance individually evaluated for impairment	0		0
Ending balance collectively evaluated for impairment	1,994		2,076
Unallocated
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning Balance	215	$ 221	221
(Recovery of) provision for loan losses	(4)		(6)
Ending Balance	211		215
Ending balance: collectively evaluated for impairment	$ 211		$ 215

A valuation allowance for financing receivables that are expected to be uncollectible.

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- Definition

The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

+ References

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- Definition

Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

+ References

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- Definition

Amount of recovery of financing receivables doubtful of collection that were previously charged off.

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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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- Definition

Amount of direct write-downs of financing receivables charged against the allowance.

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- Definition

The balance of financing receivables that were collectively evaluated for impairment.

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- Definition

The balance of financing receivables that were individually evaluated for impairment.

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- Definition

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=28367877&loc=d3e4428-111522

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- Definition

Amount of expense related loan transactions, lease transactions, credit loss from transactions other than loan and lease transactions, and other loss based on assessment of uncollectability from the counterparty to reduce the account to their net realizable value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04.11)
-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585

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