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Note 6 - Debt (Details Textual)						1 Months Ended			12 Months Ended			33 Months Ended
	Oct. 02, 2024 USD ($)	Apr. 05, 2022	Aug. 11, 2020 USD ($)	Nov. 30, 2019 USD ($) $ / shares shares	Nov. 13, 2019 USD ($)	Sep. 30, 2024 USD ($) $ / shares shares	Aug. 31, 2020 USD ($) $ / shares shares	Nov. 30, 2019 USD ($) $ / shares shares	Dec. 31, 2024 USD ($) $ / shares shares	Dec. 31, 2023 USD ($) $ / shares	Dec. 31, 2022 USD ($) $ / shares shares	Nov. 13, 2024	Nov. 13, 2020 USD ($)	Mar. 31, 2020 USD ($)
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares									359,116
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares									$ 5.46
Warrants and Rights Outstanding						$ 1,170,000
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares									0.001	$ 0.001
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]	Secured Overnight Financing Rate (SOFR) [Member]
Share Price (in dollars per share) | $ / shares						$ 6			$ 3.22	$ 2.32	$ 2.32
Interest Expense, Debt									$ 2,005,000	$ 1,060,000	$ 955,000
Amortization of Debt Discount (Premium)									1,109,000	117,000	$ 127,000
Accrued Liabilities, Current									8,914,000	5,386,000
Liability, Interest and Exit Fees [Member]
Accrued Liabilities, Current									182,000	$ 332,000
SWK Warrants [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares				51,239			18,141	51,239
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares				$ 5.86			$ 6.62	$ 5.86
Warrants and Rights Outstanding				$ 51,239				$ 51,239
Fair Value Adjustment of Warrants							$ 94,000	$ 226,000
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares				$ 5.75			$ 6.85	$ 5.75
Warrants and Rights Outstanding, Term (Year)				7 years			7 years	7 years
SWK Warrants [Member] | Measurement Input, Price Volatility [Member]
Warrants and Rights Outstanding, Measurement Input				0.95			0.95	0.95
SWK Warrants [Member] | Measurement Input, Expected Dividend Rate [Member]
Warrants and Rights Outstanding, Measurement Input				0			0	0
SWK Warrants [Member] | Measurement Input, Risk Free Interest Rate [Member]
Warrants and Rights Outstanding, Measurement Input				0.018			0.004	0.018
Common Stock Warrants [Member]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares) | shares						289,736					632,231
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares						$ 5.32
Warrants and Rights Outstanding						$ 1,170,000
Debt Instrument, Unamortized Discount									1,170,000
Common Stock Warrants [Member] | Measurement Input, Price Volatility [Member]
Warrants and Rights Outstanding, Measurement Input						63.8
Common Stock Warrants [Member] | Measurement Input, Expected Dividend Rate [Member]
Warrants and Rights Outstanding, Measurement Input						0
Common Stock Warrants [Member] | Measurement Input, Risk Free Interest Rate [Member]
Warrants and Rights Outstanding, Measurement Input						3.67
Common Stock Warrants [Member] | Measurement Input, Expected Term [Member]
Warrants and Rights Outstanding, Measurement Input						7
SWK Credit Agreement [Member]
Debt Instrument, Unamortized Discount									$ 559,000
SWK Credit Agreement [Member] | SWK Holdings Corporation [Member]
Debt Instrument, Face Amount					$ 10,000,000
Proceeds from Issuance of Debt				$ 5,000,000	5,000,000
Debt Instrument, Covenant Agreement, Additional Amount					$ 5,000,000
Debt Instrument, Covenant Requirements, Minimum Cash Balance													$ 3,000,000
Line of Credit Facility, Maximum Borrowing Capacity						$ 30,000,000
SWK Credit Agreement [Member] | SWK Holdings Corporation [Member] | Scenario, Plan [Member]
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed												5.50%
The Amended Agreement [Member] | SWK Holdings Corporation [Member]
Proceeds from Issuance of Debt			$ 2,000,000				$ 2,000,000
Debt Instrument, Covenant Agreement, Additional Amount														$ 3,000,000
Long-Term Debt, Gross														$ 2,000,000
Debt Instrument, Basis Spread on Variable Rate	6.75%	8.00%				6.75%			8.26%
Debt Instrument, LIBOR Floor Rate		2.00%
Debt Instrument SOFR Floor Rate									5.00%
Line Of Credit Facility, Additional Borrowing Capacity	$ 25,700,000					$ 25,700,000
Line of Credit Facility, Maximum Borrowing Capacity	$ 30,000,000					$ 30,000,000
Debt Instrument, Term (Year)	3 years					3 years
Debt Instrument, Periodic Payment, Principal						$ 3,000,000
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid						$ 9,000,000
Debt Instrument, Exit Fee as a Percentage of Outstanding Amounts						5.00%

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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