Discontinued Operations - Schedule of Statement of Operations for Discontinued Operations (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
Oct. 31, 2019	Oct. 31, 2018
Discontinued Operations and Disposal Groups [Abstract]
Selling, general and administrative expenses	$ (3)	$ (13)
Loss from discontinued operations	$ (3)	$ (13)
Basic and diluted loss per common share	$ (0.00)	$ (0.00)

Amount after tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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