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Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Amount of expense for research and development. Includes, but is not limited to, cost for computer software product to be sold, leased, or otherwise marketed and writeoff of research and development assets acquired in transaction other than business combination or joint venture formation or both. Excludes write-down of intangible asset acquired in business combination or from joint venture formation or both, used in research and development activity.

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Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details Textual) $ in Thousands, RM in Millions						9 Months Ended	12 Months Ended
	Dec. 03, 2025 USD ($)	Dec. 03, 2025 MYR (RM)	Sep. 17, 2025 USD ($)	Sep. 17, 2025 MYR (RM)	Jun. 30, 2025 USD ($)	Mar. 31, 2026	Jun. 30, 2026 USD ($)	Jun. 30, 2025 USD ($)	Dec. 31, 2025	Sep. 30, 2025
Number of Reportable Segments						2	2
Net Income (Loss) Available to Common Stockholders, Basic							$ (34)	$ (41)
Retained Earnings (Accumulated Deficit)					$ 12,037		10,832	12,037
Research and Development Expense							397	384
Subsidiaries [Member]
Retained Earnings (Accumulated Deficit)					$ 23,374		$ 23,119	$ 23,374
Minimum [Member]
Trade Accounts Receivable, Credit Term (Day)							30 days
Maximum [Member]
Trade Accounts Receivable, Credit Term (Day)							90 days
Trio-Tech (Malaysia) Sdn. Bhd [Member]
Business Combination, Price of Acquisition, Expected	$ 3,503	RM 14.2	$ 3,503	RM 14.2
Trio-tech (Jiangsu) Co. Ltd. [Member] \| Trio-Tech (SIP) Co., Ltd [Member]
Ownership Percentage Acquired			50.00%	50.00%	49.00%
Trio-Tech (Tianjin) Co., Ltd, [Member]
Subsidiary, Ownership Percentage, Parent										100.00%
SHI International Pte. Ltd. (Dormant) [Member] \| PT SHI Indonesia (Dormant) [Member]
Subsidiary, Ownership Percentage, Parent									95.00%