Note 2 - Summary of Significant Accounting Policies (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Dec. 13, 2025	Dec. 13, 2024
Accounts Receivable, Allowance for Credit Loss	$ 0	$ 0
Impairment of Long-Lived Assets to be Disposed of	$ 0	$ 0
Number of Reportable Segments	2
Depreciation of RMB Against U.S. Dollar, Percent	4.20%	2.80%
Minimum [Member] | Seed [Member]
Defined Benefit Plan, Plan Assets, Divestiture, Percentage			90.00%	90.00%
Maximum [Member] | Seed [Member]
Defined Benefit Plan, Plan Assets, Divestiture, Percentage			100.00%	100.00%