Warrant liability (Details) - Warrants and Rights Subject to Mandatory Redemption	Dec. 09, 2010 $ / shares shares
Class of Warrant or Right [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights \| shares	500,000
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 3.25
Class of Warrant or Right, Term	5 years
Class Of Warrant Or Right, Volatility Measurement Period For Potential Settlement	30 days
Class Of Warrant Or Right, Settlement, Value, Percent	70.00%

Class Of Warrant Or Right, Settlement, Value, Percent

No definition available.

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- Definition

Class Of Warrant Or Right, Settlement, Volatility Measurement Period

+ References

No definition available.

+ Details

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- Definition

Class of Warrant or Right, Term

+ References

No definition available.

+ Details

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- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

+ Details

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- Definition

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.

+ References

No definition available.

+ Details

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- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ 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.(i)(2))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph i

-Subparagraph 2

-Article 4

+ Details

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