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Note 8 - Preferred Stock (Details Textual) - USD ($) $ / shares in Units, $ in Thousands			1 Months Ended	12 Months Ended
	Aug. 19, 2024	Mar. 14, 2024	Sep. 30, 2024	Dec. 31, 2025	Dec. 31, 2024	May 01, 2024	Feb. 14, 2024	Jan. 14, 2024	Jan. 01, 2024	Dec. 31, 2023
Share Price (in dollars per share)						$ 34.5
Conversion of Series A Preferred Stock To Common Stock [Member]
Conversion of Stock, Shares Converted (in shares)					202
Conversion of Stock, Shares Issued (in shares)					904
Conversion of Stock, Amount Issued					$ 300
Conversion of Series A Preferred Stock to Common Stocks [Member]
Conversion of Stock, Shares Converted (in shares)					1,215
Conversion of Stock, Shares Issued (in shares)					15,072
Conversion of Stock, Amount Issued					$ 1,500
Exchange Warrants [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)								$ 268.5		$ 600
3i Exchange Warrants [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)							$ 243
Series A Convertible Preferred Stock [Member]
Preferred Stock, Shares Outstanding (in shares)									1,417
Preferred Stock, Par or Stated Value Per Share (in dollars per share)									$ 1,080
Series A Preferred Stock [Member]
Preferred Stock, Shares Outstanding (in shares)		1,215		0	0		1,296	1,417
Preferred Stock, Convertible, Conversion Price (in dollars per share)		$ 4,210						$ 268.5		$ 600
Preferred Stock, Convertible, Shares Issuable (in shares)		17,843					5,760	5,699
Gain Loss On Extinguishment Of Preferred Stock		$ 100
Redeemable Preferred Stock Dividends				$ (0)	$ 299
Preferred Stock, Shares Issued (in shares)				0	0
Series A Convertible Redeemable Preferred Stock [Member] \| August 2024 Offering [Member]
Preferred Stock, Par or Stated Value Per Share (in dollars per share)	$ 0.0001
Preferred Stock, Convertible, Conversion Price (in dollars per share)	$ 5.1
Stock Issued During Period, Shares, New Issues (in shares)	35,000
Proceeds from Issuance of Redeemable Preferred Stock	$ 2,900
Shares Issued, Price Per Share (in dollars per share)	$ 90
Deemed Dividend			$ 600	$ 0
Series A Convertible Redeemable Preferred Stock [Member] \| August 2024 Offering [Member] \| Ascendiant Capital Markets, LLC [Member]
Payments of Stock Issuance Costs	$ 200