Business (Details)	9 Months Ended
May 31, 2019 subsidiary
Business
State of entity incorporated	Delaware
Date of entity incorporation	Jan. 04, 2005
Number of wholly owned subsidiaries	4
Taiwan SemiLEDs \| Taiwan Bandaoti Zhaoming Co., Ltd.
Business
Ownership interest (as a percent)	97.00%

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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