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Note 4 - Loss Per Share | 3 Months Ended
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Apr. 30, 2013
Earnings Per Share [Text Block] | 4. Loss Per Share The Company calculates basic loss per share by dividing net loss by the weighted-average number of common shares outstanding during the reporting period. Diluted earnings per share reflects the effects of potentially dilutive securities. Since the Company incurred a net loss for each of the three months ended April 30, 2013 and 2012, basic and diluted net loss per share for both such periods were the same because the inclusion of 1,068,826 and of 847,151 potentially dilutive securities related to outstanding stock awards, respectively, would have been antidilutive. Additionally, for the three months ended April 30, 2013 the 1,704,546 outstanding warrants issued to Broadwood and the 6,000,000 potential shares issuable to Elkhorn upon debt conversion, would have been anti-dilutive.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=32703322&loc=d3e4984-109258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.21) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1278-109256 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=7655603&loc=d3e1252-109256 + Details
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Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration