Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands		12 Months Ended
	Jun. 30, 2025	Jun. 30, 2025	Jun. 30, 2024	Jun. 29, 2025
Net Income (Loss) Available to Common Stockholders, Basic		$ (41)	$ 1,050
Retained Earnings (Accumulated Deficit)	$ 12,037	12,037	11,813
Research and Development Expense		384	392
Subsidiaries [Member]
Retained Earnings (Accumulated Deficit)	$ 23,374	$ 23,374	$ 22,528
Minimum [Member]
Trade Accounts Receivable, Credit Term (Day)		30 days
Maximum [Member]
Trade Accounts Receivable, Credit Term (Day)		90 days
Trio-tech (Jiangsu) Co. Ltd. [Member]
Ownership Percentage	100.00%	100.00%
Trio-tech (Jiangsu) Co. Ltd. [Member] | Trio-Tech (SIP) Co., Ltd [Member]
Ownership Percentage Acquired	49.00%
Ownership Percentage				51.00%
Trio-Tech (Tianjin) Co., Ltd, [Member]
Noncontrolling Interest, Ownership Percentage by Parent	100.00%	100.00%