CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parentheticals) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Oct. 31, 2014
Issuance of common stock, expenses	$ 82
Common Stock [Member]
Issuance of common stock, expenses	82
Additional Paid-in Capital [Member]
Issuance of common stock, expenses	$ 82