Stockholders' Equity (Details) (USD $)	12 Months Ended
	Jul. 31, 2012	Jul. 31, 2011	Sep. 22, 2005	Sep. 21, 2005
Stockholders' Equity [Abstract]
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001	$ 0.001	$ 0.00667
Common stock, shares authorized (in shares)	50,000,000	50,000,000	50,000,000
Common stock, voting rights	Each share of common stock is entitled to one vote on any matter submitted to the holders