Sales Concentration	12 Months Ended
Jul. 31, 2017
Risks and Uncertainties [Abstract]
Sales Concentration	10. Sales Concentration Net product sales were $1,831,000 and $1,289,000 for the years ended July 31, 2017 and 2016, respectively. For the year ended July 31, 2017, two individual customers accounted for 33% and 19%, of our net product sales, respectively. No other individual customer accounted for 10% or more of our net product sales. The geographic breakdown of net product sales for the year ended July 31, 2017 was as follows: 100% U.S. For the year ended July 31, 2016, one customer accounted for 37% 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 for the year ended July 31, 2016 was as follows: 100% U.S.

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.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-URI http://asc.fasb.org/topic&trid=2134479

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