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Consolidated Statements of Stockholders' Equity (Parentheticals) (Preferred Stock)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Preferred Stock
Redemption of preferred shares	18,255us-gaap_StockRedeemedOrCalledDuringPeriodShares / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember	12,000us-gaap_StockRedeemedOrCalledDuringPeriodShares / us-gaap_StatementEquityComponentsAxis = us-gaap_PreferredStockMember

X

- Definition

Number of stock bought back by the entity at the exercise price or redemption price.

+ References

Reference 1: 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

+ Details

Name:	us-gaap_StockRedeemedOrCalledDuringPeriodShares
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration