Allowance For Credit Losses (Allowance For Credit Losses And Recorded Investments In Loans Receivables) (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended	12 Months Ended
Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	$ 5,247	$ 5,108	$ 4,935	$ 4,906	$ 4,906
Charge offs	(47)	(494)	(277)	(1,012)
Recoveries	3	15	15	20
Provisions	100	100	630	815
Ending balance	5,303	4,729	5,303	4,729	4,935
Ending balance: individually evaluated for impairment	386		386		114
Ending balance: collectively evaluated for impairment	4,917		4,917		4,821
Loans receivables, Ending Balance	509,475		509,475		481,758
Loans receivables, Ending Balance: individually evaluated for impairment	7,055		7,055		5,021
Loans receivable, Ending Balance: collectively evaluated for impairment	502,420		502,420		476,737
Reserve for unfunded loan commitments included in other liabilities			199	178	188
Residential Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	314	265	216	269	269
Charge offs		(34)	(206)	(69)
Recoveries	2	2	10	2
Provisions	87	(39)	383	(8)
Ending balance	403	194	403	194	216
Ending balance: individually evaluated for impairment	194		194
Ending balance: collectively evaluated for impairment	209		209		216
Loans receivables, Ending Balance	28,379		28,379		28,651
Loans receivables, Ending Balance: individually evaluated for impairment	1,759		1,759		1,620
Loans receivable, Ending Balance: collectively evaluated for impairment	26,620		26,620		27,031
Commercial Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	2,370	2,562	2,375	2,300	2,300
Charge offs	(39)	(105)	(39)	(105)
Provisions	141	34	136	296
Ending balance	2,472	2,491	2,472	2,491	2,375
Ending balance: collectively evaluated for impairment	2,472		2,472		2,375
Loans receivables, Ending Balance	287,638		287,638		274,132
Loans receivables, Ending Balance: individually evaluated for impairment	3,061		3,061		1,181
Loans receivable, Ending Balance: collectively evaluated for impairment	284,577		284,577		272,951
Reserve for unfunded loan commitments included in other liabilities			3	4	2
Commercial Term [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	891	721	989	709	709
Charge offs	(8)	(16)	(32)	(190)
Recoveries		8	1	10
Provisions	(90)	6	(165)	190
Ending balance	793	719	793	719	989
Ending balance: individually evaluated for impairment	100		100		110
Ending balance: collectively evaluated for impairment	693		693		879
Loans receivables, Ending Balance	104,755		104,755		102,178
Loans receivables, Ending Balance: individually evaluated for impairment	202		202		200
Loans receivable, Ending Balance: collectively evaluated for impairment	104,553		104,553		101,978
Reserve for unfunded loan commitments included in other liabilities			119	105	115
Commercial Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	866	774	569	881	881
Charge offs		(299)		(577)
Recoveries		5	1	5
Provisions	7	198	303	369
Ending balance	873	678	873	678	569
Ending balance: individually evaluated for impairment	89		89
Ending balance: collectively evaluated for impairment	784		784		569
Loans receivables, Ending Balance	29,677		29,677		20,364
Loans receivables, Ending Balance: individually evaluated for impairment	1,217		1,217		1,140
Loans receivable, Ending Balance: collectively evaluated for impairment	28,460		28,460		19,224
Reserve for unfunded loan commitments included in other liabilities			64	57	58
Leases Financing [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Charge offs
Recoveries	1		2	2
Provisions	(1)		(2)	(2)
Consumer: Home Equity [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	191	190	195	189	189
Charge offs		(10)		(11)
Provisions	11	20	7	22
Ending balance	202	200	202	200	195
Ending balance: collectively evaluated for impairment	202		202		195
Loans receivables, Ending Balance	53,175		53,175		51,270
Loans receivables, Ending Balance: individually evaluated for impairment	595		595		691
Loans receivable, Ending Balance: collectively evaluated for impairment	52,580		52,580		50,579
Reserve for unfunded loan commitments included in other liabilities			13	12	13
Consumer: Other [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	64	65	64	70	70
Charge offs		(30)		(60)
Recoveries			1	1
Provisions	(2)	31	(3)	55
Ending balance	62	66	62	66	64
Ending balance: individually evaluated for impairment	3		3		4
Ending balance: collectively evaluated for impairment	59		59		60
Loans receivables, Ending Balance	5,851		5,851		5,163
Loans receivables, Ending Balance: individually evaluated for impairment	221		221		189
Loans receivable, Ending Balance: collectively evaluated for impairment	5,630		5,630		4,974
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	551	531	527	488	488
Charge offs
Provisions	(53)	(150)	(29)	(107)
Ending balance	498	$ 381	498	$ 381	527
Ending balance: collectively evaluated for impairment	$ 498		$ 498		$ 527

FinancingReceivableReserveForUnfundedLoanCommitments

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- Definition

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

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- Definition

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

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

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

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- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for 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 50
-Paragraph 11B
-Subparagraph (g)
-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 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.7(d))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
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-Section 50
-Paragraph 2
-Subparagraph (b)(1)(ii)
-URI http://asc.fasb.org/extlink&oid=6379141&loc=d3e15032-111544

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 6
-Section L
-Subsection 1

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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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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.

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