Inventories (Tables)

12 Months Ended

Jul. 31, 2013

Inventories

Summary of inventories

	July 31,
	2013		2012
Raw materials and parts	$	23,815,000	$	21,084,000
Work-in-process	6,945,000		6,476,000
Finished goods	23,407,000		19,195,000
Total	$	54,167,000	$	46,755,000