Income Taxes (Details Narrative) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2016	Jul. 31, 2015
Income tax likehood percentage description	greater than 50 percent
Deferred tax assets, valuation allowance	$ 6,295	$ 6,017
Increases in the valuation allowance	278	158
Stock Options [Member]
Increases in the valuation allowance	0	$ 0
Federal and State Tax Authority [Member]
Operating loss carryforwards	15,500
Federal and State Tax Authority [Member] | Stock Options [Member]
Operating loss carryforwards	2,000
Foreign Tax Authority [Member]
Operating loss carryforwards	$ 100
Minimum [Member]
Income tax examination year under examination	2013
Minimum [Member] | Federal and State Tax Authority [Member]
Income tax examination year under examination	2013
Maximum [Member]
Income tax examination year under examination	2016
Maximum [Member] | Federal and State Tax Authority [Member]
Income tax examination year under examination	2016