For an unclassified balance sheet, the amount due from customers or clients for goods or services that have been delivered or sold in the normal course of business, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details Textual) - Equity Component [Domain] - USD ($)	3 Months Ended
	Jul. 31, 2015	Jul. 31, 2014	Apr. 30, 2015
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Contract Receivable Retainage	$ 1,193,000		$ 1,119,000
Accounts Receivable, Net	$ 5,070,000
Contract Receivable Retainage, Description	There were two customers of the Suisun City Operations who comprised 29% and 19% of the Companys total accounts receivable.
Fair Value Assumptions, Risk Free Interest Rate	0.97%
Fair Value Assumptions, Expected Volatility Rate	180.20%
Fair Value Assumptions, Expected Dividend Payments	$ 0
Customer One [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Percentage Of Revenue	15.00%
Customer Two [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Percentage Of Revenue	21.00%
Customer Three [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Percentage Of Revenue		51.00%
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