Note 13 - Fair Value Measurements (Details Textual) - Fair Value, Recurring [Member] - Fair Value, Inputs, Level 3 [Member] $ / shares in Units, $ in Thousands	12 Months Ended
Dec. 31, 2022 USD ($) $ / shares
Operating Lease, Fair Value In Excess Of Carrying Amount	$ 200
Measurement Input, Exercise Price [Member]
Warrant, Exercise Price, Increase (in dollars per share) \| $ / shares	$ 0.10
Fair Value Adjustment of Warrants	$ 10

Represents fair value in excess of carrying amount for operating lease.

No definition available.

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- Definition

Amount of expense (income) related to adjustment to fair value of warrant liability.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 480
-SubTopic 10
-Section 25
-Paragraph 13
-URI https://asc.fasb.org/extlink&oid=109262497&loc=d3e20148-110875

+ Details

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- Definition

Per share increase in exercise price of warrant. Excludes change due to standard antidilution provision.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI https://asc.fasb.org/extlink&oid=126973232&loc=d3e21475-112644

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