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Preferred Stock (Details Textual) - Series E Preferred Stock [Member] - USD ($) $ in Millions	1 Months Ended
	Aug. 11, 2011	Jan. 27, 2016
Temporary Equity [Line Items]
Shares of stock issued	21,000
Aggregate proceeds	$ 21
Redemption price, percent of liquidation amount		100.00%

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- Definition

Preferred Stock, Redemption, Price Percentage.

+ References

No definition available.

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Value of the difference between preference in liquidation and the par or stated values of the preferred shares.

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- Definition

Number of new stock issued during the period.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

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-Name Accounting Standards Codification
-Topic 210
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-Name Accounting Standards Codification
-Topic 505
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-Section S99
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-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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