Note 9 - Debt - Schedule Of Convertible Notes Payable (Details) - USD ($) $ / shares in Units, $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Convertible notes, net	$ 5,038	$ 4,538
Less current portion	1,620	625
Convertible Debt, Noncurrent	$ 3,418	3,913
Convertible Notes dated September 10, 2018 [Member]
Fixed Conversion Rate (in dollars per share)	$ 0.40
Effective Interest Rate	8.00%
Convertible notes, net	$ 200	200
Convertible Note Dated September 19, 2018 [Member]
Fixed Conversion Rate (in dollars per share)	$ 0.57
Effective Interest Rate	8.00%
Convertible notes, net	$ 425	425
Convertible Notes Dated February/March 2019 [Member]
Fixed Conversion Rate (in dollars per share)	$ 0.25
Effective Interest Rate	8.00%
Convertible notes, net	$ 750	750
Convertible Notes Dated June/July 2019 [Member]
Fixed Conversion Rate (in dollars per share)	$ 0.10
Effective Interest Rate	8.00%
Convertible notes, net	$ 295	295
Convertible Notes Dated July 18, 2019 [Member]
Fixed Conversion Rate (in dollars per share)	$ 0.08
Effective Interest Rate	7.50%
Convertible notes, net	$ 700	700
Convertible Notes Dated September 13, 2019 [Member]
Fixed Conversion Rate (in dollars per share)	$ 0.10
Effective Interest Rate	8.00%
Convertible notes, net	$ 50	50
Convertible Notes Dated January 8, 2020 [Member]
Fixed Conversion Rate (in dollars per share)	$ 0.13
Effective Interest Rate	8.00%
Convertible notes, net	$ 450	450
Convertible Notes Dated May-August 2022 [Member]
Fixed Conversion Rate (in dollars per share)	$ 0.13
Effective Interest Rate	8.00%
Convertible notes, net	$ 1,468	1,668
Convertible Notes Dated January 11, 2023 [Member]
Fixed Conversion Rate (in dollars per share)	$ 0.16
Effective Interest Rate	9.00%
Convertible notes, net	$ 500	0
Convertible Notes Dated January 13, 2023 [Member]
Fixed Conversion Rate (in dollars per share)	$ 0.16
Effective Interest Rate	9.00%
Convertible notes, net	$ 200	$ 0

Including the current and noncurrent portions, carrying amount of debt identified as being convertible into another form of financial instrument (typically the entity's common stock) as of the balance sheet date, which originally required full repayment more than twelve months after issuance or greater than the normal operating cycle of the company.

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Carrying amount of long-term convertible debt as of the balance sheet date, net of the amount due in the next twelve months or greater than the normal operating cycle, if longer. The debt is convertible into another form of financial instrument, typically the entity's common stock.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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