Sales Concentration	12 Months Ended
Sales Concentration	Jul. 31, 2014
Sales Concentration [Abstract]
Sales Concentration	11. Sales Concentration Net product sales were $550,000 and $820,000 for the years ended July 31, 2014 and 2013, respectively. For the year ended July 31, 2014, two customers accounted for 66% of our net product sales. No other individual customer accounted for 10% or more of our net product sales. The geographic breakdown of net product sales was as follows: 100% U.S. For the year ended July 31, 2013, three customers accounted for 69% of our net product sales. No other individual customer accounted for 10% or more of our net product sales. The geographic breakdown of net product sales was as follows: 86% U.S. and 14% foreign.

The entire disclosure for any concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. This disclosure informs financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date.

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