NOTE J - CREDIT FACILITY	9 Months Ended
NOTE J - CREDIT FACILITY	Jan. 31, 2015
Debt Disclosure [Abstract]
Debt Disclosure [Text Block]	NOTE J – CREDIT FACILITY The Company has a credit facility (the “Facility”) with JPMorgan Chase Bank, N.A. (“JPMorgan”) pursuant to a credit agreement (the “Credit Agreement”) between the Company and JPMorgan. Under the Facility the Company may make borrowings from either Tranche A or Tranche B or a combination of both, not to exceed $25.0 million. Pursuant to the Credit Agreement, the amount of Tranche A borrowings may not exceed the value of the Pledged Investments (as defined in the Credit Agreement). The amount of Tranche B borrowings may not exceed the lesser of (i) $15.0 million and (ii) the Borrowing Base (as defined in the Credit Agreement). Current outstanding borrowings of $8.4 million under the Facility are all under Tranche A. The Facility is fully guaranteed by certain of the Company’s subsidiaries and is secured by, among other things, a pledge of substantially all personal property of the Company and certain of the Company’s subsidiaries. Borrowings under the Facility are evidenced by a line of credit note (the “Note”) and bear interest, payable monthly, at a rate equal to the LIBOR Rate, as determined from time to time by JPMorgan pursuant to the terms of the Note, plus a margin of 0.75% for Tranche A borrowings and 1.75% for Tranche B borrowings. The principal balance on the Note, along with any accrued and unpaid interest, is due and payable no later than June 5, 2018, which is the maturity date of the Facility. In addition, the Company is required to pay JPMorgan fees equal to 0.1% per annum on any unused portion of the Facility. The Credit Agreement contains a number of affirmative and negative covenants, including limitations on the incurrence of additional debt, liens on property, acquisitions, loans and guarantees, mergers, consolidations, liquidations and dissolutions, asset sales, and distributions and other payments in respect of the Company’s capital stock. The Credit Agreement also contains certain events of default customary for credit facilities of this type, including nonpayment of principal or interest when due, material incorrectness of representations and warranties when made, breach of covenants, bankruptcy and insolvency, unstayed material judgment beyond specified periods, and acceleration or payment default of other material indebtedness. The Credit Agreement requires the Company to maintain, as of the end of each fiscal quarter, a funded debt to EBITDA (Earnings Before Interest, Taxes, Depreciation and Amortization) ratio and an interest charge coverage ratio. The calculation of both ratios is defined in the Credit Agreement. For the period ended January 31, 2015, the Company met the required covenants for its borrowings under Tranche A.

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

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