Inventories

3 Months Ended

Oct. 31, 2017

Inventory Disclosure [Abstract]

Inventory Disclosure [Text Block]

Note 4 - Inventories

Inventories consist of the following:

	October 31, 2017		July 31, 2017
Raw materials	$	878	$	852
Work in process		1,881		1,905
Finished products		4,451		4,290
	$	7,210	$	7,047