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Note 8 - Shareholders' Equity (Details) - Stock Purchase Warrants (USD $) | 3 Months Ended
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Mar. 31, 2013
Class of Warrant or Right [Line Items] |
Warrants | $ 22,332,623
Series 1 [Member] | $2.40 [Member] |
Class of Warrant or Right [Line Items] |
Warrants | 5,200,519
Exercise Price (in Dollars per Item) | 2.40
Expiration Date | Jun. 30, 2014
Series 1 [Member] | $2.51 [Member] |
Class of Warrant or Right [Line Items] |
Warrants | 460,976
Exercise Price (in Dollars per Item) | 2.51
Expiration Date | Jun. 30, 2014
Series 3 [Member] | $2.45 [Member] |
Class of Warrant or Right [Line Items] |
Warrants | $ 16,671,128
Exercise Price (in Dollars per Item) | 2.45
Expiration Date | Aug. 31, 2014

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- Definition Date the warrants or rights are exercisable, in CCYY-MM-DD format. + 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)(3)) -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 3 -Article 4 + Details
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- Definition Exercise price per share or per unit of warrants or rights outstanding. + 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)(4)) -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 4 -Article 4 + Details
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- Definition Value of outstanding derivative securities that permit the holder the right to purchase securities (usually equity) from the issuer at a specified price. + 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)) -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 -Article 4 + Details
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