Stockholders' Equity (Details) - Schedule of stock option plans $ / shares in Units, $ in Thousands	3 Months Ended
	Oct. 31, 2015 USD ($) $ / shares shares
Schedule of stock option plans [Abstract]
Outstanding at July 31, 2015 | shares	1,358,104
Outstanding at July 31, 2015	$ 3.04
Cancelled or expired | shares	(6,000)
Cancelled or expired	$ 3.61
Outstanding at end of period | shares	1,352,104
Outstanding at end of period	$ 3.04
Outstanding at end of period	2 years 73 days
Outstanding at end of period | $	$ 964
Exercisable at end of period | shares	785,188
Exercisable at end of period	$ 2.87
Exercisable at end of period	1 year 292 days
Exercisable at end of period | $	$ 664