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Note 2 - Summary of Significant Accounting Policies - Schedule of Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents (Details) - USD ($) $ in Thousands	Mar. 31, 2026	Dec. 31, 2025	Dec. 31, 2024
Cash and cash equivalents	$ 18,405	$ 7,958
Restricted cash included in other assets	435	267
Total cash, cash equivalents, and restricted cash in the unaudited condensed consolidated statements of cash flows	$ 18,840	$ 8,225	$ 907

Amount of cash and cash equivalent restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate.

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