Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Aug. 31, 2025	Aug. 31, 2024
Income Statement [Abstract]
Revenues, net	$ 43,009	$ 5,183
Cost of revenues	40,578	4,130
Gross profit	2,431	1,053
Operating expenses:
Research and development	1,154	1,160
Selling, general and administrative	2,872	2,891
Gain on disposals of long-lived assets, net		(49)
Total operating expenses	4,026	4,002
Loss from operations	(1,595)	(2,949)
Other income (expenses):
Investment loss from unconsolidated entities	(958)	(3)
Interest expenses, net	(141)	(247)
Other income, net	1,100	1,181
Foreign currency transaction gain (loss), net	464	(13)
Total other income, net	465	918
Loss before income taxes	(1,130)	(2,031)
Net loss	(1,130)	(2,031)
Less: Net income attributable to noncontrolling interests		5
Net loss attributable to SemiLEDs stockholders	$ (1,130)	$ (2,036)
Net loss per share attributable to SemiLEDs stockholders:
Basic	$ (0.15)	$ (0.32)
Diluted	$ (0.15)	$ (0.32)
Shares used in computing net loss per share attributable to SemiLEDs stockholders:
Basic	7,721	6,320
Diluted	7,721	6,320