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Disclosure of Credit Risk of Financial Instruments with Off-Balance Sheet Risk	12 Months Ended
	Apr. 30, 2013
Risks and Uncertainties [Abstract]
Disclosure of Credit Risk of Financial Instruments with Off-Balance Sheet Risk	Note 11-Disclosure of Credit Risk of Financial Instruments with Off-Balance Sheet Risk: Other than EAM and the Value Line Funds as explained in Note 3-Related Party Transactions, no single customer accounted for a significant portion of the Company’s sales in fiscal 2013, 2012, or 2011, nor its accounts receivable as of April 30, 2013 or 2012. 6155799223l30i71g61jig5436kljg43

The entire disclosure for any concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. This disclosure informs financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date.

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