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Teva Agreement (Details Textual)	1 Months Ended		9 Months Ended		12 Months Ended	1 Months Ended
	Nov. 30, 2012 USD ($)	Mar. 16, 2011 USD ($)	Jan. 31, 2014 USD ($)	Jan. 31, 2013 USD ($)	Apr. 30, 2013 CAD	Mar. 16, 2011 One Compound [Member] USD ($)	Mar. 16, 2011 Second Compound [Member] USD ($)
Potential Milestone Payments		$ 27,000,000
Royalty Expense					10,000	460,000	880,000
Exercise of Options to One Time Royalty Fee	880,000		880,000
Deferred Revenue, Revenue Recognized			133,000	317,000
Increase (Decrease) in Contract Receivables, Net			$ 277,000

X

- Definition

The value of options exercised during the period for the payment of one-time royalty fee.

+ References

No definition available.

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X

- Definition

The Amount of Potential milestone payments during the period.

+ References

No definition available.

+ Details

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X

- Definition

Amount of previously reported deferred or unearned revenue that was recognized as revenue during the period. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 605

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 13.A.4(a).Q1)

-URI http://asc.fasb.org/extlink&oid=27012821&loc=d3e214044-122780



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

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 13

-Section A

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- Definition

The increase (decrease) during the reporting period in receivables arising from the contracting of goods and services, net for uncollectible accounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

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- Definition

Amount of expense related to royalty payments under a contractual arrangement such as payment for mineral and drilling rights and use of technology or intellectual property.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.3)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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