Note 9 - Debt - Long-term Debt (Details) (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022
Mortgage Promissory Note, December 2023 [Member]
Debt Instrument, Interest Rate, Stated Percentage	13.50%	13.50%
Debt Instrument, Face Amount	$ 4,100	$ 4,100
Debt Instrument, Maturity Date	Dec. 01, 2028	Dec. 01, 2028
Mortgage Promissory Note, July 2020 [Member]
Debt Instrument, Face Amount	$ 2,500	$ 2,500
Debt Instrument, Maturity Date	Jan. 31, 2025	Jan. 31, 2025
Disposal Group, Including Discontinued Operation, Long-term Debt		$ 450
Mortgage Promissory Note, July 2020 [Member] \| Prime Rate [Member]
Debt Instrument, Basis Spread on Variable Rate	15.50%	15.50%
Mortgage Promissory Note, July 2020 [Member] \| Minimum [Member]
Debt Instrument, Interest Rate, Stated Percentage	7.00%	7.00%
Mortgage Promissory Note, July 2020 [Member] \| Maximum [Member]
Debt Instrument, Interest Rate, Stated Percentage	10.30%	10.30%
Equipment Notes, May 2021 [Member] \| Notes Payable, Other Payables [Member]
Debt Instrument, Face Amount	$ 46	$ 46
Debt Instrument, Maturity Date	Jun. 30, 2025	Jun. 30, 2025
Interest rate, effective rate	3.60%	3.60%
Equipment Notes June 2023 [Member] \| Notes Payable, Other Payables [Member]
Debt Instrument, Face Amount	$ 144	$ 144
Debt Instrument, Maturity Date	Aug. 31, 2025	Aug. 31, 2025
Interest rate, effective rate	14.00%	14.00%
Progress Payment Agreement [Member]
Debt Instrument, Interest Rate, Stated Percentage	25.20%	25.20%
Debt Instrument, Face Amount	$ 37	$ 37

Amount classified as long-term debt attributable to disposal group held for sale or disposed of.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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- Definition

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

+ References

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Date when the debt instrument is scheduled to be fully repaid, in YYYY-MM-DD format.

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