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Note 12 - Convertible Notes (Details Textual) $ / shares in Units, $ in Thousands			1 Months Ended	12 Months Ended
	May 01, 2023 USD ($)	Apr. 27, 2023 USD ($) $ / shares	Dec. 31, 2023 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Jun. 30, 2023 USD ($)	Jun. 09, 2023 USD ($)
Repayments of Convertible Debt				$ 1,474	$ (0)
Fair Value Adjustment of Warrants				(272)	$ (5,446)
The 2023 Private Placement [Member]
Proceeds from Convertible Debt	$ 1,200
Debt Issuance Costs, Net	700
Original Issue Discount Senior Secured Convertible Debentures [Member]
Debt Instrument, Face Amount	3,300
Debt Instrument, Unamortized Discount	300		$ 596	$ 596
Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ / shares		$ 1.3
Debt Instrument, Convertible, Number of Equity Instruments		2,538,464		1,454,021
Debt Instrument, Increase (Decrease), Net		$ (183)
Debt Instrument, Redemption Price, Amount Per Month		$ 193				$ 193
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger		90.00%
Debt Instrument, Convertible, Threshold Trading Days		10
Debt Instrument, Redemption Price, Percentage		20.00%
Repayments of Convertible Debt			126
Debt Instrument, Default, Interest Rate		18.00%
Embedded Derivative, Fair Value		$ 209					$ 169
Fair Value Adjustment of Warrants	40
Debt Issuance Costs, Net	300		$ 98	$ 98
Debt Instrument, Interest Rate, Effective Percentage			173.00%	173.00%
Amortization of Debt Issuance Costs and Discounts				$ 1,700
Original Issue Discount Senior Secured Convertible Debentures [Member] | The 2023 Private Placement [Member]
Debt Instrument, Unamortized Discount	$ 300
Original Issue Discount Senior Secured Convertible Debentures [Member] | Measurement Input, Redemption in Stock [Member]
Debt Instrument, Redemption Price, Amount Per Month		$ 193

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