XML 21 R10.htm IDEA: XBRL DOCUMENT v3.7.0.1
Inventory
9 Months Ended
Apr. 30, 2017
Inventory Disclosure [Abstract]  
Inventory

5. Inventory

 

Inventories are stated at the lower of cost or net realizable value, and net of a valuation allowance for potential excess or obsolete material. Cost is determined using the average cost method. Depreciation related to manufacturing is systematically allocated to inventory produced, and expensed through cost of goods sold at the time inventory is sold.

 

Inventories consist of the following:

 

    April 30, 2017     July 31, 2016
Raw materials   $ 98,000     $ 120,000  
Finished goods     250,000       230,000  
    $ 348,000     $ 350,000