Acquisitions	12 Months Ended
Jul. 31, 2012
Business Combinations [Abstract]
Acquisitions	(2) Acquisitions Stampede In October 2010, we acquired the WAN optimization technology assets and assumed certain liabilities of Stampede for an estimated total purchase price of approximately $5,303,000. Almost all of the purchase price for Stampede was allocated to the estimated fair value of technologies acquired and was assigned an estimated amortizable life of five years. As of July 31, 2013, we maintain a liability of approximately $288,000 for contingent earn-out payments through October 1, 2013, based on our estimate of certain revenue and related gross margin milestones. We review our estimates and updated forecasts on a quarterly basis and record adjustments in the fair value of the earn-out liability as required. In fiscal 2013 and fiscal 2012, we recorded a benefit of $3,267,000 and $918,000, respectively, related to changes in the fair value of the contingent earn-out liability. These adjustments are reflected as a reduction to selling, general and administrative expenses in our Consolidated Statement of Operations for the respective periods. There was no change in the fair value of the contingent earn-out liability in fiscal 2011. Interest accreted on the contingent earn-out liability for the years ended July 31, 2013, 2012 and 2011 was $133,000, $462,000 and $391,000, respectively. Total interest accreted through July 31, 2013 was $986,000. As of July 31, 2013, we paid $1,816,000 of the total purchase price in cash, including $316,000 of earn-out payments. Stampede was immediately combined with our existing business and is now part of the telecommunications transmission reportable operating segment. Sales and income related to the Stampede acquisition were not material to our results of operations for the fiscal years ended July 31, 2013, 2012 and 2011, and the effects of the acquisition would not have been material to our historical consolidated financial statements.

Acquisitions

12 Months Ended

Jul. 31, 2012

(2) Acquisitions

Stampede

In October 2010, we acquired the WAN optimization technology assets and assumed certain liabilities of Stampede for an estimated total purchase price of approximately $5,303,000. Almost all of the purchase price for Stampede was allocated to the estimated fair value of technologies acquired and was assigned an estimated amortizable life of five years. As of July 31, 2013, we maintain a liability of approximately $288,000 for contingent earn-out payments through October 1, 2013, based on our estimate of certain revenue and related gross margin milestones. We review our estimates and updated forecasts on a quarterly basis and record adjustments in the fair value of the earn-out liability as required. In fiscal 2013 and fiscal 2012, we recorded a benefit of $3,267,000 and $918,000, respectively, related to changes in the fair value of the contingent earn-out liability. These adjustments are reflected as a reduction to selling, general and administrative expenses in our Consolidated Statement of Operations for the respective periods. There was no change in the fair value of the contingent earn-out liability in fiscal 2011.

Interest accreted on the contingent earn-out liability for the years ended July 31, 2013, 2012 and 2011 was $133,000, $462,000 and $391,000, respectively. Total interest accreted through July 31, 2013 was $986,000. As of July 31, 2013, we paid $1,816,000 of the total purchase price in cash, including $316,000 of earn-out payments.

Stampede was immediately combined with our existing business and is now part of the telecommunications transmission reportable operating segment. Sales and income related to the Stampede acquisition were not material to our results of operations for the fiscal years ended July 31, 2013, 2012 and 2011, and the effects of the acquisition would not have been material to our historical consolidated financial statements.