Note 1 - Basis of Presentation and Summary of Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Mar. 31, 2023
Net Income (Loss) Available to Common Stockholders, Basic	$ 1,544	$ 2,395
Retained Earnings (Accumulated Deficit)	10,763	9,219
Research and Development Expense	397	375
Subsidiaries [Member]
Retained Earnings (Accumulated Deficit)	$ 21,001	$ 18,755
Minimum [Member]
Trade Accounts Receivable, Credit Term (Day)	30 days
Maximum [Member]
Trade Accounts Receivable, Credit Term (Day)	90 days
Trio-Tech (Tianjin) Co., Ltd, [Member]
Noncontrolling Interest, Ownership Percentage by Parent			100.00%