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Note 6 - Accrued Expenses and Other Current Liabilities - Summary of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Accrued expenses	$ 28	$ 75
Accrued salaries and employee benefits	736	661
Accrued clinical trial costs	597	1,017
Grant liability	470	471
Customer deposits	69	90
Total	1,900	2,385
Related Party [Member]
Payable to related party	$ 0	$ 71

X

- Definition

Amount of accrued liabilities and liabilities classified as other, due within one year or the normal operating cycle, if longer.

+ References

No definition available.

+ Details

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X

- Definition

Carrying value as of the balance sheet date of the obligations incurred through that date and payable for employees' services provided and employee benefits (due within one year or within the normal operating cycle if longer).

+ References

No definition available.

+ Details

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X

- Definition

Amount of obligations incurred for clinical trial costs, payable within one year or the normal operating cycle, if longer.

+ References

No definition available.

+ Details

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X

- Definition

The amount of customer deposit liabilities classified as current.

+ References

No definition available.

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- Definition

Amount of obligations incurred for grants, payable within one year or the normal operating cycle, if longer.

+ References

No definition available.

+ Details

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X

- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(20))
-Publisher FASB
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- Definition

Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
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-Name Accounting Standards Codification
-Section S99
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Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 852
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481372/852-10-55-10

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