Allowance For Credit Losses (Allowance For Credit Losses And Recorded Investments In Loans Receivables) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	$ 4,935	$ 4,906	$ 4,906
Charge offs	(97)	(17)
Recoveries	4	1
Provisions	330	300
Ending balance	5,172	5,190	4,935
Ending balance: individually evaluated for impairment	200		114
Ending balance: collectively evaluated for impairment	4,972		4,821
Loans receivables, Ending Balance	489,366		481,758
Loans receivables, Ending Balance: individually evaluated for impairment	5,128		5,021
Loans receivable, Ending Balance: collectively evaluated for impairment	484,238		476,737
Reserve for unfunded loan commitments included in other liabilities	186	156	188
Residential Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	216	269	269
Charge offs	(84)
Recoveries	1
Provisions	87
Ending balance	220	269	216
Ending balance: individually evaluated for impairment	1
Ending balance: collectively evaluated for impairment	219		216
Loans receivables, Ending Balance	27,560		28,651
Loans receivables, Ending Balance: individually evaluated for impairment	1,781		1,620
Loans receivable, Ending Balance: collectively evaluated for impairment	25,779		27,031
Commercial Mortgage [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	$ 2,375	2,300	2,300
Charge offs
Provisions	$ 1	98
Ending balance	2,376	2,398	2,375
Ending balance: collectively evaluated for impairment	2,376		2,375
Loans receivables, Ending Balance	274,372		274,132
Loans receivables, Ending Balance: individually evaluated for impairment	1,025		1,181
Loans receivable, Ending Balance: collectively evaluated for impairment	273,347		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	989	709	709
Charge offs	(13)	(11)
Recoveries	1
Provisions	(29)	7
Ending balance	948	705	989
Ending balance: individually evaluated for impairment	107		110
Ending balance: collectively evaluated for impairment	841		879
Loans receivables, Ending Balance	107,232		102,178
Loans receivables, Ending Balance: individually evaluated for impairment	210		200
Loans receivable, Ending Balance: collectively evaluated for impairment	107,022		101,978
Reserve for unfunded loan commitments included in other liabilities	115	87	115
Commercial Construction [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	$ 569	881	881
Charge offs
Recoveries	$ 1
Provisions	195	41
Ending balance	765	922	569
Ending balance: individually evaluated for impairment	89
Ending balance: collectively evaluated for impairment	676		569
Loans receivables, Ending Balance	24,833		20,364
Loans receivables, Ending Balance: individually evaluated for impairment	1,237		1,140
Loans receivable, Ending Balance: collectively evaluated for impairment	23,596		19,224
Reserve for unfunded loan commitments included in other liabilities	$ 55	53	58
Leases financing [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Charge offs
Recoveries	$ 1	1
Provisions	(1)	(1)
Consumer: Home Equity [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	$ 195	189	189
Charge offs
Provisions	$ (7)	35
Ending balance	188	224	195
Ending balance: collectively evaluated for impairment	188		195
Loans receivables, Ending Balance	49,545		51,270
Loans receivables, Ending Balance: individually evaluated for impairment	676		691
Loans receivable, Ending Balance: collectively evaluated for impairment	48,869		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	70	70
Charge offs		(6)
Provisions	$ 3	2
Ending balance	67	66	64
Ending balance: individually evaluated for impairment	3		4
Ending balance: collectively evaluated for impairment	64		60
Loans receivables, Ending Balance	5,824		5,163
Loans receivables, Ending Balance: individually evaluated for impairment	199		189
Loans receivable, Ending Balance: collectively evaluated for impairment	5,625		4,974
Unallocated [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	$ 527	488	488
Charge offs
Provisions	$ 81	118
Ending balance	608	$ 606	527
Ending balance: collectively evaluated for impairment	$ 608		$ 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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- Definition

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
-SubTopic 30
-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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- 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.

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