Trade, Other and Loans Receivable Allowance for Loan and Lease Losses (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	$ 557
Recoveries	(62)	90
Ending balance	638
Commercial – owner occupied
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	64	77	77
Charge-offs	0		0
Recoveries	1		62
Provision	(5)		(104)
Ending balance	60	35	64
Commercial – other
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	12	28	28
Charge-offs	0		0
Recoveries	11		7
Provision	(12)		(7)
Ending balance	11	28	12
Commercial and industrial
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	481	319	319
Charge-offs	0		(3)
Recoveries	7		8
Provision	79		22
Ending balance	567	346	481
Financing Receivable Loans Total
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Beginning balance	557	424	424
Charge-offs	0		(3)
Recoveries	19		77
Provision	62		(89)
Ending balance	$ 638	$ 409	$ 557

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

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)(1)

-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

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-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 310

-SubTopic 10

-Section 50

-Paragraph 11B

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-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524

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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.

+ References

Reference 1: 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

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 225

-Section S99

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-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

Reference 3: http://www.xbrl.org/2003/role/presentationRef

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