Sales Concentration

12 Months Ended

Jul. 31, 2016

Risks and Uncertainties [Abstract]

Sales Concentration

10. Sales Concentration

Net product sales were $1,289,000 and $729,000 for the years ended July 31, 2016 and 2015, respectively. 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. For the year ended July 31, 2015, one customer accounted for 47% 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, 2015 was as follows: 97% U.S. and 3% foreign.