Note 13 - EW Convertible Notes (Details Textual) - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended
	Jan. 18, 2024	Aug. 26, 2021	Mar. 31, 2024	Mar. 31, 2023
Proceeds from Convertible Debt			$ 1,607	$ 0
Interest Expense, Debt			2,077	$ 1,443
Derivative Liability			327
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) [Member]	London Interbank Offered Rate [Member]
The 2024 Notes [Member] | EW Investors [Member]
Proceeds from Convertible Debt	$ 2,000
Debt Instrument, Basis Spread on Variable Rate	8.50%
Debt Instrument, Default, Increase in Interest Rate	4.00%
Debt Instrument, Convertible, Conversion Ratio	799.3605
Debt Instrument, Convertible, Conversion Price (in dollars per share)	$ 1.251
Long-Term Debt, Gross			2,100
Interest Expense, Debt			57
Derivative Liability	$ 900		300
Repayments of Convertible Debt			$ 0
Debt Instrument, Maturity Date	Dec. 09, 2025