Debt and Convertible Debt (Details) - USD ($) $ in Thousands	Apr. 30, 2018	Jul. 31, 2017
Debt Instrument [Line Items]
Total outstanding debt	$ 2,123
Less discount on debt	(93)
Total debt net of discount	2,030
Less debt due within 12 months	(1,530)
Long-term portion of debt	500
Note Payable Five [Member]
Debt Instrument [Line Items]
Total outstanding debt	500
Note Payable Four [Member]
Debt Instrument [Line Items]
Total outstanding debt	650
Note Payable Three [Member]
Debt Instrument [Line Items]
Total outstanding debt	125
Note Payable Two [Member]
Debt Instrument [Line Items]
Total outstanding debt	250
Note Payable One [Member]
Debt Instrument [Line Items]
Total outstanding debt	250
Note Payable Six [Member]
Debt Instrument [Line Items]
Total outstanding debt	$ 348