Bank Deposits (Scheduled Maturities Of Certificates Of Deposit) (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013
Within one year	$ 26,769,000	$ 82,115,000
One to three years	6,874,000	34,694,000
Three to five years	1,268,000	3,701,000
Over five years		66,000
Certificates of deposit, less than $100	34,911,000us-gaap_TimeDepositsLessThan100000	120,576,000us-gaap_TimeDepositsLessThan100000
Within one year	33,784,000	75,577,000
One to three years	7,520,000	41,756,000
Three to five	723,000	3,336,000
Over five years	259,000	236,000
Certificates of deposit, $100 and greater	42,286,000us-gaap_TimeDeposits100000OrMore	120,905,000us-gaap_TimeDeposits100000OrMore
Total certificates of deposit	77,197,000us-gaap_TimeDeposits	241,481,000us-gaap_TimeDeposits
Deposits of related parties	4,700,000,000us-gaap_RelatedPartyDepositLiabilities	4,300,000,000us-gaap_RelatedPartyDepositLiabilities
Stifel Nicolaus [Member]
Interest bearing and time deposits of executive officers, directors, and affiliates	$ 300,000	$ 400,000

Interest Bearing And Time Deposit Of Officials

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- Definition

Time deposit maturities, less than one hundred thousand, next rolling twelve months.

+ References

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Time deposit maturities, less than one hundred thousand, rolling years one to three.

+ References

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Time deposit maturities, less than one hundred thousand, rolling years three to five.

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Time deposit maturities, one hundred thousand or more, next rolling twelve months.

+ References

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Time deposit maturities, one hundred thousand or more, rolling one to three years.

+ References

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Time deposits, 100,000 or more, maturing in rolling years three to five.

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Time deposits, 100,000 or more, maturing over five rolling years.

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Time deposits less than 100,000, maturing over five rolling years.

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- Definition

Amount of deposits held by the entity for a related party (entity, shareholder, employee).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(k))

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Amount of deposits that cannot be withdrawn before a set date without penalty or for which notice of withdrawal is required. Time deposits include, but are not limited to, certificates of deposits, individual retirement accounts and open accounts.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.12)

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 12

-Article 9

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The aggregate amount of domestic and foreign time deposit liabilities (including certificates of deposits, individual retirement accounts and open accounts) in denominations of $100,000 or more.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 405

-Section 50

-Paragraph 1

-Subparagraph (a)

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-Publisher SEC

-Name Industry Guide

-Number 3

-Section V

-Paragraph A

-Subparagraph 4

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The aggregate amount of domestic or foreign time deposits (including certificates of deposits, individual retirement accounts and open accounts) that total to less than $100,000.

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