Note 6 - Commitments and Contingencies (Details Textual)	3 Months Ended	6 Months Ended	12 Months Ended
Jun. 30, 2026 USD ($)	Jun. 30, 2026 USD ($)	Dec. 31, 2025 USD ($)	Mar. 31, 2026 USD ($)
Legal Fees		$ 17,000	$ 25,000
Foreign Currency Fluctuation Rate During the Period		6.60%	12.50%
Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation	$ 11,212,000	$ 11,212,000	$ 9,862,000
Cash, Cash Equivalents, and Short Term Investments, Interest Rate During Period	3.40%	3.00%
Supplier Concentration Risk [Member] \| Accounts Payable [Member]
Number of Major Suppliers		3	4
Supplier Concentration Risk [Member] \| Accounts Payable [Member] \| Three Suppliers [Member]
Concentration Risk, Percentage		10.00%
Supplier Concentration Risk [Member] \| Accounts Payable [Member] \| Four Suppliers [Member]
Concentration Risk, Percentage			10.00%
Bank Guarantees to Governmental Bodies [Member]
Guaranty Liabilities	$ 1,461,000	$ 1,461,000	$ 1,424,000
Bank Guarantees to Others [Member]
Guaranty Liabilities	118,000	118,000		$ 109,000
Bank Guarantees [Member]
Guaranty Liabilities	$ 1,579,000	$ 1,579,000	$ 1,533,000

Amount of cash and cash equivalent, and cash and cash equivalent restricted to withdrawal or usage; attributable to continuing operation. 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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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings.

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