Note 12 - Stockholders' Equity (Details Textual)					4 Months Ended	5 Months Ended	12 Months Ended
	Sep. 12, 2024 USD ($)	Jul. 25, 2024 USD ($) $ / shares shares	May 29, 2024 USD ($) $ / shares shares	Dec. 08, 2021 USD ($) $ / shares shares	Dec. 31, 2024 USD ($) $ / shares shares	Dec. 31, 2024 USD ($) $ / shares shares	Dec. 31, 2024 USD ($) $ / shares shares	Dec. 31, 2023 USD ($) $ / shares shares	Sep. 15, 2022 $ / shares shares
Common Stock, Shares Authorized (in shares)					600,000,000	600,000,000	600,000,000	600,000,000
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares					$ 0.0001	$ 0.0001	$ 0.0001	$ 0.0001
Common Stock, Shares, Outstanding (in shares)					13,734,160	13,734,160	13,734,160	6,310,090
Common Stock Voting Rights, Number of Votes					1	1	1
Preferred Stock, Shares Authorized (in shares)					1,000,000	1,000,000	1,000,000	1,000,000
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares					$ 0.0001	$ 0.0001	$ 0.0001	$ 0.0001
Preferred Stock, Shares Issued (in shares)					0	0	0	0
Stock Issued During Period, Value, New Issues | $							$ 13,041,000	$ 136,000
Proceeds from Issuance of Common Stock | $							$ 11,080,000	$ 136,000
Common Stock, Shares, Issued (in shares)					13,734,160	13,734,160	13,734,160	6,310,090
Preferred Stock, Shares Outstanding (in shares)					0	0	0	0
Securities Purchase Agreement [Member]
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares			$ 0.0001
Equity Offering, Exchange Cap, Shares (in shares)			727,706
Stock Issued During Period, Value, New Issues | $			$ 2,509
Shares Issued, Price Per Share (in dollars per share) | $ / shares			$ 3.448
Tumim Stone Capital [Member] | Private Placement [Member]
Sale Of Stock, Common Stock, Value, Maximum | $				$ 125,000,000
Sale Of Stock, Exchange Cap, Shares Of Common Stock Outstanding Immediately Prior To Execution Of Agreement (in shares)				1,028,847
Sale Of Stock, Exchange Cap Exception, Price Per Share, Minimum (in dollars per share) | $ / shares				$ 148.46
Sale of Stock, Term of Agreement (Month)				36 months
Sale of Stock, Percentage of Ownership After Transaction, Maximum				9.99%
Sale of Stock, Price Per Share Multiplier				0.9615
Sale of Stock Maximum Number of Shares Issued Per Day Calculation Amount Divided By Closing Common Stock Sale Price | $				$ 20,000,000
Sale of Stock, Maximum Number of Shares Issued Per Day Calculation Average Daily Common Stock Trading Volume Multiplier				0.15
Sale of Stock, Number of Shares Issued in Transaction (in shares)				10,087			939,200	19,500
Sale of Stock, Consideration Received on Transaction | $							$ 2,489,000	$ 136,000
New Circle Principal Investments LLC [Member] | Share Purchase Agreement [Member]
Equity Offering, Maximum Amount | $		$ 50,000,000
Equity Offering, Exchange Cap, Shares (in shares)		1,721,755
Equity Offering, Exchange Cap, Minimum Average Price Per Share (in dollars per share) | $ / shares		$ 1.41
Equity Offering, Period (Month)		36 months
Equity Offering, Maximum Beneficial Ownership, Percentage		4.99%
Equity Offering, Purchase Price, Percentage of Volume Weighted Average Price for One Day or Intraday Trading Period		15.00%
Equity Offering, Purchase Price, Percentage of Volume Weighted Average Price for Three Consecutive Day Trading Period		97.50%
Equity Offering, Maximum Shares Per Day (in shares)		400,000
Stock Issued During Period, Shares, New Issues (in shares)		225,563				1,325,713
Stock Issued During Period, Value, New Issues | $		$ 282,000
Proceeds from Issuance of Common Stock | $						$ 1,679
Alliance Global Partners (“A.G.P.”) [Member] | At Market Issuance Sales Agreement (the “ATM”) [Member]
Equity Offering, Maximum Amount | $	$ 2,600,000				$ 5,230,000	$ 5,230,000	$ 5,230,000
Equity Offering, Period (Month)	36 months
Stock Issued During Period, Shares, New Issues (in shares)					3,528,617
Proceeds from Issuance of Common Stock | $					$ 5,229
Equity Offering, Cash Commission, Percentage of Gross Proceeds	3.00%
Private Placement Warrants [Member]
Class of Warrant or Right, Outstanding (in shares)					5,555	5,555	5,555
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares)					1	1	1
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares					$ 345	$ 345	$ 345
Public Warrants [Member]
Class of Warrant or Right, Outstanding (in shares)					255,555	255,555	255,555
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares)					1	1	1
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares					$ 345	$ 345	$ 345
Convertible Note Warrants [Member]
Class of Warrant or Right, Outstanding (in shares)									58,333
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares									$ 105
Warrants and Rights Outstanding, Term (Year)									4 years
Contingent Warrants [Member]
Class of Warrant or Right, Outstanding (in shares)								58,333