Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended
	Apr. 30, 2021	Oct. 31, 2020	Apr. 30, 2020	Oct. 31, 2019	Apr. 30, 2021	Apr. 30, 2020
Operating activities
Net Loss	$ (29)	$ (59)	$ (40)	$ (55)	$ (127)	$ (138)
Add back: (gain) loss attributable to discontinued operations						(1)
Changes in operating assets and liabilities
Prepaid expenses					(12)
Accounts payable and accrued expenses					(3)	(1)
Net cash used in continuing operations					(142)	(140)
Net cash used in operating activities					(142)	(140)
Net decrease in cash					(142)	(140)
Cash, beginning of period		$ 203		$ 353	203	353
Cash, end of period	$ 61		$ 213		$ 61	$ 213