Note 24 - Subsequent Events (Details Textual) - Trio-Tech (Jiangsu) Co. Ltd. (“TTJS”) [Member]	Dec. 31, 2021
Trio-Tech (SIP) Co., Ltd [Member]
Noncontrolling Interest, Ownership Percentage by Parent	51.00%
Suzhou Anchuang Technology Management LLP (“SATM”) [Member]
Noncontrolling Interest, Ownership Percentage by Parent	49.00%

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

No definition available.

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant