Note 14 - Segment Reporting and Geographic Information (Tables)

3 Months Ended

Mar. 31, 2026

Notes Tables

Segment Reporting, Reconciliation of Other Item by Segment to Consolidated [Table Text Block]

		For three months ended March 31,
		2025				2026
		$				$
		(unaudited)				(unaudited)
Clinical and pre-clinical expenses			115				532
Patent expenses			166				139
Personnel costs			1,088				666
Professional services			956				639
Other operational expenses			285				256
Other segment items			(26	)			119
Segment net loss			2,584				2,351
Reconciliation of net loss:
Net loss (income) from discontinued operations			(3,754	)			4,323
Consolidated net loss (income)			(1,170	)			6,674

Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Long-Lived Asset [Table Text Block]

		As of
		December 31, 2025				March 31, 2026
		$				$
Property and equipment, net:						(unaudited)

PRC			11				10
U.S.			155				142

Total			166				152