Loan Payable (Details) - USD ($)	3 Months Ended
	Oct. 31, 2015	Jul. 31, 2015
Debt Disclosure [Abstract]
Line of Credit Facility Expiration Month and Year	December 2016
Line of Credit Facility, Maximum Borrowing Capacity	$ 8,000,000
Line of Credit Facility Additional Borrowings Capacity	4,000,000
Unamortized Debt Issuance Expense	$ 281,000
LIBOR Rate Period	3 months
Debt Instrument, Description of Variable Rate Basis	three month LIBOR rate, with a floor of 1.25% plus an applicable margin of 4.0%
Debt Instrument, Basis Spread on Variable Rate	1.25%
Debt Instrument Margin on Variable Rate	4.00%
Debt Instrument Increase in Interest Rate on Default	3.00%
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage	0.50%
Long-term Line of Credit	$ 3,013,000	$ 3,013,000
Line of Credit Facility Minimum Borrowings	2,000,000
Line of Credit Facility, Remaining Borrowing Capacity	2,400,000
Line of Credit Facility Minimum Liquidity Requirement	3,000,000
Line of Credit Facility Minimum Liquidity Current	11,000,000
Line of Credit Facility Minimum Cash Burn	0
Line of Credit Facility Cash Burn Current	1,400,000
Line of Credit Facility Minimum Cash Burn Excluding Capital Expenditures	7,000,000
Line of Credit Facility Cash Burn Current Excluding Capital Expenditures	$ 33,100,000