Property, Equipment and Leasehold Improvements (Details) - USD ($)	Aug. 31, 2020	Aug. 31, 2019
Held for use:
Machinery and equipment	$ 9,950,000	$ 8,739,000
Furniture and fixtures	2,517,000	1,112,000
Vehicles	155,000	155,000
Leasehold improvements	6,540,000	2,514,000
Land	0	0
Building	0	0
Construction in progress	79,000	820,000
Total held for use	19,241,000	13,340,000
Less: accumulated depreciation and amortization	(10,393,000)	(9,623,000)
Total property, equipment, and leasehold improvements held for use, net	8,848,000	3,717,000
Held for sale:
Land	0	1,716,000
Building	0	5,489,000
Total held for sale	0	7,205,000
Less: accumulated depreciation and amortization	0	(350,000)
Total property, equipment, and leasehold improvements held for sale, net	0	6,855,000
Total property, equipment and leasehold improvements, net	$ 8,848,000	$ 10,572,000