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Note 3 - Fair Value Measurements - Fair Value of Assets Measured on a Recurring Basis (Details) - Fair Value, Recurring [Member] - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Cash in savings account	$ 5,287	$ 2,371
Fair Value, Inputs, Level 1 [Member]
Cash in savings account	0	2
Fair Value, Inputs, Level 2 [Member]
Cash in savings account	0	0
Fair Value, Inputs, Level 3 [Member]
Cash in savings account	0	0
Savings Account [Member]
Cash in savings account	4,628	2,058
Savings Account [Member] | Fair Value, Inputs, Level 1 [Member]
Cash in savings account	0	0
Savings Account [Member] | Fair Value, Inputs, Level 2 [Member]
Cash in savings account	0	0
Savings Account [Member] | Fair Value, Inputs, Level 3 [Member]
Cash in savings account	0	0
Money Market Funds [Member]
Cash in savings account		2
Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Cash in savings account		2
Money Market Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Cash in savings account		0
Money Market Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Cash in savings account		0
Demand Deposits [Member]
Cash in savings account	659	311
Demand Deposits [Member] | Fair Value, Inputs, Level 1 [Member]
Cash in savings account	0	0
Demand Deposits [Member] | Fair Value, Inputs, Level 2 [Member]
Cash in savings account	0	0
Demand Deposits [Member] | Fair Value, Inputs, Level 3 [Member]
Cash in savings account	$ 0	$ 0

X

- Definition

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 11
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-11

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 11
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-11

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482907/825-10-50-10

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

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