The amount of tax on goods and services that is due to a foreign office.

No definition available.

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- Definition

The percentage of ownership of common stock or equity participation in the investee.

+ References

No definition available.

+ Details

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- Definition

The cash outflow for the return of the initial grant funding received to ARENA in accordance to the deed executed between the parties.

+ References

No definition available.

+ Details

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- Details

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- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (c)

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Antidilution

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Diluted Earnings Per Share

-URI http://asc.fasb.org/extlink&oid=6510752

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Contingent Stock Agreement

-URI http://asc.fasb.org/extlink&oid=6508534

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- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

The amount of cash paid for interest during the period.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 50

-Paragraph 2

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 25

-Subparagraph (e)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3536-108585

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.16)

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 20, 22

-Article 5

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.16)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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- Definition

The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

+ Details

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- Definition

The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element.

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 1

-Article 5

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.1)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Note 2 - Summary of Significant Accounting Policies (Details Textual)	1 Months Ended		3 Months Ended		6 Months Ended					6 Months Ended										6 Months Ended
	Aug. 31, 2014 USD ($)	Aug. 31, 2014 AUD	Oct. 31, 2014 USD ($)	Oct. 31, 2013	Oct. 31, 2014 USD ($)	Oct. 31, 2013	Apr. 30, 2014 USD ($)	Apr. 30, 2014 Grant Funding [Member] USD ($)	Apr. 30, 2014 Grant Funding [Member] AUD	Oct. 31, 2014 Barclays Bank [Member] USD ($)	Oct. 31, 2014 Barclays Bank [Member] EUR (€)	Jul. 31, 2014 Barclays Bank [Member] USD ($)	Jul. 31, 2014 Barclays Bank [Member] EUR (€)	Oct. 31, 2014 New Jersey Board of Public Utilities [Member] USD ($)	Oct. 31, 2014 Foreign Tax Authority [Member] Australian Taxation Office [Member] USD ($)	Oct. 31, 2014 Foreign Tax Authority [Member] Australian Taxation Office [Member] AUD	Oct. 31, 2014 Letter of Credit [Member] Oregon Department of State Lands [Member] USD ($)	Jul. 31, 2014 Letter of Credit [Member] Oregon Department of State Lands [Member] USD ($)	Oct. 31, 2014 Victorian Wave Partners Pty. Ltd. [Member] OPTA [Member]	Oct. 31, 2014 Intangible Assets, Amortization Period [Member] Prior to Impairment Review [Member]	Oct. 31, 2014 Intangible Assets, Amortization Period [Member] Revised Estimate [Member]
Accounting Policies [Abstract]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners																			11.80%
Ownership Percentage			100.00%		100.00%
Line of Credit Facility, Commitment Fee Percentage										1.00%	1.00%
Line of Credit Facility, Maximum Borrowing Capacity										$ 387,097	€ 307,000	$ 964,656	€ 800,000	$ 500,000			$ 22,000	$ 1,200,000
Long-term Line of Credit										351,655	278,892			200,000
Restricted Cash and Cash Equivalents			600,000		600,000		7,300,000	5,179,960	5,595,723
Goods and Services Tax Due to Foreign Office							470,905								470,905	508,702
Repayments of Grant Funding	5,179,960	5,595,723
Interest Paid	$ 102,061	109,051
Finite-Lived Intangible Asset, Useful Life																				5 years	1 year
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount			1,649,813	1,493,353	1,649,813	1,493,353