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Common Stock Repurchase Program	3 Months Ended
	Jul. 31, 2011
Common Stock Repurchase Program	18.  Common Stock Repurchase Program On June 16, 2011, our board of directors authorized the expenditure of up to $5.0 million for the repurchase of shares of our common stock. Under the common stock repurchase program, shares may be purchased from time to time in open market transactions, block trades, and through plans established under the Securities Exchange Act Rule 10b5-1. The amount of shares purchased and the timing of such purchases will be based on working capital requirements, market and general business conditions and other factors including alternative investment opportunities. We purchased 119,075 shares of our common stock at a cost of $1.1 million for the three-month period ending July 31, 2011. On August 25, 2011, our board of directors authorized the expenditure of an additional $2.0 million , for a total authorization of $7.0 million, for the repurchase of shares of our common stock. Since the initial authorization of this program on June 16, 2011, the company has purchased 399,982 shares of our common stock at a cost of $3.5 million as of September 8, 2011.

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- Definition

The entire disclosure for an entity's treasury stock, including the average cost per share, carrying basis for each class of treasury stock, description of share repurchase program authorized by an entity's board of directors, the number of shares repurchased, the cost of the shares repurchased, the remaining maximum dollar value of shares available for repurchase under the program, the treatment of the purchase price in excess of the current market value, number of shares held for each class of treasury stock, and other information necessary to a fair presentation.

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