SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Textual) - USD ($)	12 Months Ended
Apr. 30, 2016	Apr. 30, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Contract Receivable Retainage	$ 326,000	$ 1,119,000
Fair Value Assumptions, Risk Free Interest Rate	0.97%
Fair Value Assumptions, Expected Volatility Rate	180.20%
Fair Value Assumptions, Expected Dividend Payments	$ 0
Percentage Of Labor Force Subject To Collective Bargaining Agreements	76.00%
Stock Options Forfeiture Rate	0.00%	0.00%
Convertible Series F and F-1 Preferred Stock [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Share Price	$ 301.81
Convertible Series G and G-1 Preferred Stock [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Share Price	$ 350.43
Sales Revenue, Net [Member] \| Customer One [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Concentration Risk, Percentage	16.80%	60.60%
Accounts Receivable [Member] \| Customer One [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Concentration Risk, Percentage		61.00%
Accounts Receivable [Member] \| Customer Two [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Concentration Risk, Percentage	55.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6351-108592

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13531-108611

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=51801978&loc=d3e6404-108592

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
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- Definition

Amount billed to customers under long-term contracts or programs that have been withheld because of retainage provisions in a contract.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 910
-SubTopic 310
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=51673017&loc=d3e49370-109356

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.3(c)(1))
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Amount of dividends expected to be paid to holders of the underlying shares or contracted instruments over the term of the instruments life.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
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Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price.

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Risk-free interest rate assumption used in valuing an instrument.

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Price of a single share of a number of saleable stocks of a company.

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Percentage of labor force which are subject to collective bargaining agreements.

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The forfeiture rate of stock options during the reporting period.

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