Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

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Sum of the carrying amounts as of the balance sheet date of all assets that are expected to be realized in cash, sold, or consumed within one year (or the normal operating cycle, if longer). Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity.

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Carrying value as of the balance sheet date of dividends declared but unpaid on equity securities issued by the entity and outstanding. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Total obligations incurred as part of normal operations that are expected to be paid during the following twelve months or within one business cycle, if longer.

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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.

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Represents the billings in excess of costs and estimated earnings on uncompleted contracts.

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It represents the amount of debt instrument remaining balance of debt.

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Percentage of international operation.

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It represents the purchase price of the subsequent event of during the year.

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The amount working capital deficiency during the reporting period.

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BASIS OF PRESENTATION AND LIQUIDITY (Details Textual) - Range [Domain] - Class Of Stock [Domain] - USD ($)	3 Months Ended
	Jul. 31, 2015	Apr. 30, 2015	Jul. 31, 2014	Apr. 30, 2014
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Assets, Current, Total	$ 16,246,587	$ 14,005,704
Liabilities, Current, Total	14,038,647	15,252,018
Working Capital Deficiency	$ 2,208,000	1,246,000
Percentage Of International Operation	60.00%
Accounts Payable and Accrued Liabilities, Current, Total	$ 4,131,620	5,409,361
Dividends Payable, Current	228,568	677,546
Cash and Cash Equivalents, at Carrying Value, Total	5,539,610	2,364,360	$ 1,318,949	$ 2,177,070
Common Stock, Value, Issued	220	$ 98
Purchase Price	1,575,000
Billings In Excess Of Costa And Estimated Earnings	1,472,000
China Operations [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Liabilities, Current, Total	7,935,000
Suisun Operation [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Long-term Line of Credit	1,000,000
Dividend Payable [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Common Stock, Value, Issued	660,000
Short Term Promissory Notes [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Debt Instrument, Remaining Debt	$ 1,703,000