Summary of Significant Accounting Policies (Details 3) (USD $)	12 Months Ended
Jul. 31, 2012	Jul. 31, 2011
Note payable
Repayment of note payable	$ (168,000)	$ (861,000)
Former Shareholders [Member]
Note payable
Beginning fair value	3,504,000	4,159,000
Imputed interest	518,000	543,000
Change in estimates	(368,000)	(337,000)
Interest expense	150,000	206,000
Repayment of note payable	(168,000)	(861,000)
Ending fair value	$ 3,486,000	$ 3,504,000

The increase (decrease) during the reporting period in the amount owed by the reporting entry in the form of loans and obligations (generally evidenced by promissory notes) made by the following types of related parties: a parent company and its subsidiaries; subsidiaries of a common parent; an entity and trust for the benefit of employees, such as pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management, an entity and its principal owners, management, or member of their immediate families, affiliates, or other parties with the ability to exert significant influence.

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The amount for notes payable (written promise to pay), due to related parties.

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- Definition

The cash outflow for a borrowing supported by a written promise to pay an obligation.

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