Common stock repurchases	9 Months Ended
Apr. 30, 2017
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Common stock repurchases	8. Common stock repurchases On May 26, 2016, our board of directors authorized the repurchase of up to $15.0 million of our common stock. After that authorization, we continued to repurchase stock with $1 million of unused capacity from the prior $30 million repurchase program, which was authorized by our board of directors on June 2, 2014. Purchases under the current program will be made from time to time depending on market conditions and other factors. The Company's repurchase programs have no expiration date. The Board's authorization of the share repurchase programs does not obligate the Company to acquire any particular amount of common stock, and the programs may be suspended or discontinued at any time at the Company's discretion. During the three and nine months ended April 30, 2017 , we repurchased and retired 13,578 shares of common stock under the June 2, 2014 repurchase program for $1.0 million at an average purchase price of $74.08 per share. The cumulative shares that were repurchased and retired under this program were 380,771 shares of common stock for $30.0 million at an average purchase price of $78.76 per share. The June 2, 2014 repurchase program is now complete. During the three and nine months ended April 30, 2017 , we repurchased and retired 8,090 shares of common stock under the May 26, 2016 repurchase program for $0.6 million at an average purchase price of $71.46 per share. The cumulative shares that were repurchased and retired under this program were 8,090 shares of common stock for $0.6 million at an average purchase price of $71.46 per share.

8. Common stock repurchases

On May 26, 2016, our board of directors authorized the repurchase of up to $15.0 million of our common stock. After that authorization, we continued to repurchase stock with $1 million of unused capacity from the prior $30 million repurchase program, which was authorized by our board of directors on June 2, 2014. Purchases under the current program will be made from time to time depending on market conditions and other factors. The Company's repurchase programs have no expiration date. The Board's authorization of the share repurchase programs does not obligate the Company to acquire any particular amount of common stock, and the programs may be suspended or discontinued at any time at the Company's discretion.

During the three and nine months ended April 30, 2017 , we repurchased and retired 13,578 shares of common stock under the June 2, 2014 repurchase program for $1.0 million at an average purchase price of $74.08 per share. The cumulative shares that were repurchased and retired under this program were 380,771 shares of common stock for $30.0 million at an average purchase price of $78.76 per share. The June 2, 2014 repurchase program is now complete.

During the three and nine months ended April 30, 2017 , we repurchased and retired 8,090 shares of common stock under the May 26, 2016 repurchase program for $0.6 million at an average purchase price of $71.46 per share. The cumulative shares that were repurchased and retired under this program were 8,090 shares of common stock for $0.6 million at an average purchase price of $71.46 per share.