Commitments and Contingencies (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	May 31, 2022	May 31, 2021	May 31, 2022	May 31, 2021	Aug. 31, 2021
Commitments and Contingencies
Operating lease agreements, description			The Company has several operating leases with unrelated parties, primarily for land, plant and office spaces in Taiwan, which include cancelable and noncancelable and which expire at various dates between December 2024 and December 2040.
Lease expense related to noncancelable operating leases	$ 36	$ 42	$ 120	$ 123
ASSETS
Operating lease right of use assets	1,648		1,648		$ 1,635
Liabilities
Operating lease liabilities, current portion	136		136		98
Operating lease liabilities, less current portion	1,512		1,512		1,537
Total	1,648		1,648		1,635
Operating lease expenses, net	$ 36	$ 42	120	123
Cash Paid for amounts Included In Measurement of Liabilities:
Operating cash flows from operating leases			$ 120	$ 123
Operating leases	16 years 8 months 19 days	18 years 9 months 25 days	16 years 8 months 19 days	18 years 9 months 25 days
Operating leases	1.76%	1.76%	1.76%	1.76%
Remainder of 2022	$ 41		$ 41
2023	164		164
2024	164		164
2025	121		121
2026	100		100
Thereafter	1,309		1,309
Total future minimum lease payments, undiscounted	1,899		1,899
Less: Imputed interest	251		251
Present value of future minimum lease payments	1,648		1,648		1,635
Purchase Obligations
Purchase commitments for inventory, property, plant and equipment	$ 127		$ 127		$ 101
Minimum
Commitments and Contingencies
Cancelable and noncancelable operating lease expiration			2024-12
Maximum
Commitments and Contingencies
Cancelable and noncancelable operating lease expiration			2040-12