Note 9 - Leases - Lease Information (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022
Weighted average remaining lease term (Year)	4 months 24 days	1 year 4 months 24 days
Discount rate	22.00%	22.00%
Nonrelated Party [Member]
Right-of-use operating lease assets – related party, net	$ 122,000	$ 372,000
Non-current lease liability – related party	0	131,000
Nonrelated Party [Member] \| Current Liabilities [Member]
Current lease liability (included in other current liabilities)	$ 131,000	$ 267,000

Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
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- Definition

Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.

+ References

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- Definition

Amount of lessee's right to use underlying asset under operating lease.

+ References

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- Definition

Weighted average discount rate for operating lease calculated at point in time.

+ References

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-Topic 842
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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 842
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-URI https://asc.fasb.org//1943274/2147479589/842-20-55-53

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