Purchase of Noncontrolling Interest	3 Months Ended
Purchase of Noncontrolling Interest	Jul. 31, 2013
Noncontrolling Interest [Abstract]
Purchase of Noncontrolling Interest	B. Purchase of Noncontrolling Interest During the three-month period ended July 31, 2013, the Company entered into an Agreement (the “Agreement”) whereby it purchased the 49% minority ownership of its subsidiary, Kewaunee Labway Asia Pte. Ltd. (the “Subsidiary”) for a total purchase price of $3,555,000. The purchase was recorded in the equity section of the consolidated balance sheet as a $1,874,000 reduction in retained earnings and a $1,681,000 reduction in noncontrolling interest. Pursuant to the terms of the Agreement, the Company paid cash of $1,780,000 to the minority stockholder and recorded other current liabilities of $887,500 and other noncurrent liabilities of $887,500. The Subsidiary and its subsidiary in India, Kewanee Labway India Pvt. Ltd., serve as the Company’s principal sales and distribution organization for sales to international customers.

The entire disclosure for noncontrolling interest in consolidated subsidiaries, which could include the name of the subsidiary, the ownership percentage held by the parent, the ownership percentage held by the noncontrolling owners, the amount of the noncontrolling interest, the location of this amount on the balance sheet (when not reported separately), an explanation of the increase or decrease in the amount of the noncontrolling interest, the noncontrolling interest share of the net Income or Loss of the subsidiary, the location of this amount on the income statement (when not reported separately), the nature of the noncontrolling interest such as background information and terms, the amount of the noncontrolling interest represented by preferred stock, a description of the preferred stock, and the dividend requirements of the preferred stock.

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