Investment Securities (Detail Textuals 1) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Schedule of Available-for-sale Securities [Line Items]
Unrealized losses on debt investments	$ 1,132	$ 3,991
Pooled Trust Preferred Issues
Schedule of Available-for-sale Securities [Line Items]
Number of securities in unrealized loss position	2
Below investment grade rated investments as percentage of book value of corporations investments	1.28%
Below investment grade rated investments as percentage of market value of Corporations investments	1.03%
Pooled Trust Preferred Issues \| ALESCO 9A \| Moody's, Baa3 Rating
Schedule of Available-for-sale Securities [Line Items]
Unrealized losses on debt investments	313	387
Pooled Trust Preferred Issues \| PRETSL XXVII \| Moody's, A2 Rating
Schedule of Available-for-sale Securities [Line Items]
Unrealized losses on debt investments	$ 1	$ 6

Amount of accumulated pre-tax unrealized loss before deducting pre-tax unrealized gain on investments in available-for-sale securities impacting investments.

No definition available.

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- Definition

Represents the percentage of aggregate book value of investments for investment securities.

+ References

No definition available.

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- Definition

Represents the percentage of aggregate market value of investments for investment securities.

+ References

No definition available.

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- Definition

Number of investment positions in available-for-sale investments in a continuous unrealized loss position for which an other-than-temporary impairment (OTTI) has not been recognized in the income statement.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 50

-Paragraph 6

-Subparagraph (b)(3)

-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27290-111563

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