CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parentheticals) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jul. 31, 2014	Jul. 31, 2013
Issuance of common stock, expenses	$ 357	$ 224
Common Stock [Member]
Issuance of common stock, expenses	357	224
Additional Paid-in Capital [Member]
Issuance of common stock, expenses	$ 357	$ 224