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Investment in Securities (Narrative) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2015 USD ($) item	Sep. 30, 2014 USD ($)	Sep. 30, 2015 USD ($) item	Sep. 30, 2014 USD ($)	Dec. 31, 2014 item
Investment in Securities [Abstract]
Number of securities that had an unrealized loss | item	16		16		20
Percentage of total securities	5.00%		5.00%		6.00%
Proceeds from sales of securities available-for-sale	$ 33,395,000	$ 587,000	$ 99,347,000	$ 587,000
Gross realized gains	1,271,000	$ 23,000	2,910,000	$ 23,000
Securities pledged as collateral	$ 3,750,000		$ 3,750,000

X

- Definition

The percentage of the number of investment positions in the available-for-sale investments determined to be temporarily impaired.

+ References

No definition available.

+ Details

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X

- Definition

This item represents the gross profit realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 320



-SubTopic 10



-Section 50



-Paragraph 9



-Subparagraph (a)



-URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27357-111563

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X

- Definition

The fair value of available-for-sale securities that serve as collateral for borrowings.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 310



-SubTopic 10



-Section 50



-Paragraph 5



-URI http://asc.fasb.org/extlink&oid=49124121&loc=d3e5086-111524

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X

- 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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- References

No definition available.

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X

- Definition

The cash inflow associated with the sale of debt and equity securities classified as available-for-sale securities.

+ References

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



-Publisher FASB



-Name Accounting Standards Codification



-Glossary Investing Activities



-URI http://asc.fasb.org/extlink&oid=6516133



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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 320



-SubTopic 10



-Section 45



-Paragraph 11



-URI http://asc.fasb.org/extlink&oid=49167202&loc=d3e26853-111562



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



-Publisher FASB



-Name Accounting Standards Codification



-Topic 230



-SubTopic 10



-Section 45



-Paragraph 12



-Subparagraph (a),(b)



-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3179-108585

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