Note 5 - Debt (Details Textual)

v3.25.3

Note 5 - Debt (Details Textual)																	1 Months Ended		3 Months Ended			9 Months Ended
		Jul. 10, 2025 USD ($) $ / shares shares	Jul. 07, 2025 USD ($) shares	Jun. 13, 2025 USD ($)	May 30, 2025 $ / shares shares	May 12, 2025 USD ($)	Apr. 28, 2025 USD ($)	Apr. 14, 2025 USD ($)	Mar. 28, 2025 USD ($) $ / shares	Mar. 26, 2025 USD ($)	Feb. 15, 2025 USD ($)	Feb. 10, 2025 USD ($)	Nov. 19, 2024 USD ($)	Nov. 14, 2024 USD ($)	Nov. 08, 2024 USD ($)	Dec. 17, 2023 USD ($)	Sep. 30, 2025 USD ($) $ / shares	Jul. 31, 2025 USD ($)	Sep. 30, 2025 USD ($) $ / shares	Jun. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2025 USD ($) $ / shares shares	Sep. 30, 2024 USD ($)	Aug. 11, 2025 USD ($)	Dec. 31, 2024
Proceeds from Issuance of Debt		$ 4,000,000
Warrants and Rights Outstanding	[1]																$ 71,000		$ 71,000		$ 947,000	$ 71,000	$ 947,000
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]																Prime Rate [Member]
Measurement Input, Price Volatility [Member]
Warrants and Rights Outstanding, Measurement Input																					0.98		0.98		1.01
Measurement Input, Risk Free Interest Rate [Member]
Warrants and Rights Outstanding, Measurement Input																					0.0421		0.0421
Minimum [Member] | Measurement Input, Price Volatility [Member]
Warrants and Rights Outstanding, Measurement Input																	1.07		1.07			1.07
Minimum [Member] | Measurement Input, Risk Free Interest Rate [Member]
Warrants and Rights Outstanding, Measurement Input																	0.036		0.036			0.036			0.0427
Minimum [Member] | Measurement Input, Expected Term [Member]
Warrants and Rights Outstanding, Measurement Input																	1.96		1.96		3.89	1.96	3.89		2.71
Maximum [Member] | Measurement Input, Price Volatility [Member]
Warrants and Rights Outstanding, Measurement Input																	1.14		1.14			1.14
Maximum [Member] | Measurement Input, Risk Free Interest Rate [Member]
Warrants and Rights Outstanding, Measurement Input																	0.0368		0.0368			0.0368			0.0438
Maximum [Member] | Measurement Input, Expected Term [Member]
Warrants and Rights Outstanding, Measurement Input																	3.98		3.98		4.47	3.98	4.47		4.74
Conversion of Diagonal Note into Common Stock [Member]
Debt Conversion, Original Debt, Amount																						$ 247,000
Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ / shares																	$ 2.33		$ 2.33			$ 2.33
Debt Conversion, Converted Instrument, Shares Issued (in shares) | shares																						106,000
Pre-Funded Warrant [Member]
Class of Warrant or Right, Issued During Period | shares		173,023			59,833
Shares Issued, Price Per Share | $ / shares					$ 4.79
Common Stock Purchase Warrants [Member]
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right | shares		659,968
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares		$ 5.361
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares		659,968
Warrants and Rights Outstanding																	$ 1,935,000		$ 1,935,000			$ 1,935,000
Common Stock Purchase Warrants [Member] | Measurement Input, Price Volatility [Member]
Warrants and Rights Outstanding, Measurement Input																	0.40		0.40			0.40
Common Stock Purchase Warrants [Member] | Minimum [Member] | Measurement Input, Risk Free Interest Rate [Member]
Warrants and Rights Outstanding, Measurement Input																	0.0366		0.0366			0.0366
Common Stock Purchase Warrants [Member] | Minimum [Member] | Measurement Input, Expected Term [Member]
Warrants and Rights Outstanding, Measurement Input																	3.83		3.83			3.83
Common Stock Purchase Warrants [Member] | Maximum [Member] | Measurement Input, Risk Free Interest Rate [Member]
Warrants and Rights Outstanding, Measurement Input																	0.0388		0.0388			0.0388
Common Stock Purchase Warrants [Member] | Maximum [Member] | Measurement Input, Expected Term [Member]
Warrants and Rights Outstanding, Measurement Input																	4		4			4
Common Stock Amended Purchase Warrants [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares																	$ 1.19		$ 1.19			$ 1.19
YP Warrants [Member]
Warrants and Rights Outstanding																	$ 865,000		$ 865,000			$ 865,000
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings																						$ 1,070,000
Scenario, Plan [Member] | Agile Exchange Agreement [Member]
Shares Issued, Price Per Share | $ / shares		$ 5.67
Scenario, Plan [Member] | Common Stock [Member] | Agile Exchange Agreement [Member]
Stock Issued During Period, Shares, Equity Exchange | shares		44,128
Scenario, Plan [Member] | Series AAAA Junior Convertible Preferred Stock [Member]
Stock Issued During Period, Shares, Equity Exchange | shares			1,500,000
Agile Loan Agreement [Member]
Debt Instrument, Face Amount															$ 1,850,000
Debt Instrument, Term															196 days
Interest Expense, Short-Term Borrowings															$ 780,000
Debt Instrument, Default, Basis Spread on Variable Rate															5.00%
Debt Instrument, Interest Rate, Effective Percentage																	42.00%		42.00%			42.00%
Debt Instrument, Periodic Payment														$ 93,821
Debt Instrument, Covenant, Maximum Unsecured Loans															$ 3,000,000
Payments of Loan Costs															92,500
Repayments of Debt											$ 1,500,000	$ 1,500,000
Debt Instrument, Fee Amount															$ 92,500
Debt Instrument, Interest Rate, Stated Percentage															42.00%
Agile II Note [Member]
Debt Instrument, Face Amount												$ 2,500,000
Debt Instrument, Term												224 days
Debt Instrument, Default, Basis Spread on Variable Rate												5.00%
Debt Instrument, Interest Rate, Effective Percentage																	42.00%		42.00%			42.00%
Debt Instrument, Periodic Payment		$ 25,000										$ 110,937
Interest Payable												$ 1,050,000.00
Debt Instrument, Number of Payments												32
Debt Instrument, Period for Discount if Paid in Full												60 days
Debt Instrument, Fee Amount												$ 125,000
Long-Term Debt, Gross		1,331,250
Debt Issuance Costs Incurred During Noncash or Partial Noncash Transaction		100,000
Debt Instrument, Interest Rate, Stated Percentage												42.00%
Agile and Agile II [Member]
Proceeds from (Repayments of) Debt												$ 875,000
Diagonal Note [Member]
Debt Instrument, Face Amount										$ 300,000
Debt Instrument, Fee Amount										$ 7,000
Debt Instrument, Interest Rate, Stated Percentage										10.00%
Debt Instrument, Default, Interest Rate										22.00%
Debt Instrument, Convertible, Period Start										180 days
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger										75.00%
Debt Instrument, Convertible, Threshold Trading Days										10
Debt Instrument, Default, Period After Written Notice to Correct										20 days
Debt Instrument, Default, Percentage of Principal Paid										150.00%
Beneficial Ownership, Minimum Percentage of Shares Outstanding, Initial										4.99%
Debt Instrument, Discount, Percent										4.75%
Proceeds from Issuance of Debt										$ 279,000
Diagonal II Note [Member]
Debt Instrument, Face Amount						$ 145,200
Debt Instrument, Fee Amount						$ 7,000
Debt Instrument, Interest Rate, Stated Percentage						10.00%
Debt Instrument, Default, Interest Rate						22.00%
Debt Instrument, Convertible, Period Start						180 days
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger						75.00%
Debt Instrument, Convertible, Threshold Trading Days						10
Debt Instrument, Default, Period After Written Notice to Correct						20 days
Debt Instrument, Default, Percentage of Principal Paid						150.00%
Beneficial Ownership, Minimum Percentage of Shares Outstanding, Initial						19.99%
Debt Instrument, Discount, Percent						9.09%
Proceeds from Issuance of Debt						$ 125,000
Belleau Purchase Agreement [Member]
Debt Instrument, Face Amount									$ 1,500,000															$ 1,250,000
Debt Instrument, Interest Rate, Stated Percentage									20.00%
Debt Instrument, Default, Interest Rate									20.00%
Debt Instrument, Default, Period After Written Notice to Correct									20 days
Proceeds from Issuance of Debt							$ 600,000	$ 600,000	$ 300,000									$ 150,000		$ 1,100,000
Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ / shares									$ 14
Debt Instrument, Redemption Price, Percentage									20.00%
Repayments of Long-Term Debt																	$ 250,000		$ 250,000
RP Note [Member]
Debt Instrument, Face Amount													$ 1,500,000
Debt Instrument, Term													12 months
Debt Instrument, Periodic Payment				$ 175,000
Debt Instrument, Interest Rate, Stated Percentage													40.00%
Debt Instrument, Default, Interest Rate													45.00%
Debt Instrument, Default, Period After Written Notice to Correct													20 days
Preferred Stock Exchange Agreement [Member]
Debt Instrument, Face Amount			$ 1,878,082
Debt Instrument, Periodic Payment			63,000
Debt Issuance Costs Incurred During Noncash or Partial Noncash Transaction			$ 378,000
Purchase Agreement [Member]
Debt Instrument, Face Amount		$ 4,494,382,000
Debt Instrument, Term		18 months
Debt Instrument, Interest Rate, Stated Percentage		8.00%
Debt Instrument, Default, Interest Rate		18.00%
Debt Instrument, Discount, Percent		11.00%
Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ / shares		$ 6.815															$ 5.95		$ 5.95			$ 5.95
Debt Instrument, Covenant, Outstanding Amount, Threshold		$ 1,500,000
Debt Instrument, Percentage of Subsequent Offerings		25.00%
Purchase Agreement [Member] | Measurement Input, Price Volatility [Member]
Debt Instrument, Measurement Input																	0.40		0.40			0.40
Purchase Agreement [Member] | Minimum [Member]
Ownership Percentage		4.99%
Purchase Agreement [Member] | Minimum [Member] | Measurement Input, Risk Free Interest Rate [Member]
Debt Instrument, Measurement Input																	0.0366		0.0366			0.0366
Purchase Agreement [Member] | Minimum [Member] | Measurement Input, Expected Term [Member]
Debt Instrument, Measurement Input																	1.3		1.3			1.3
Purchase Agreement [Member] | Maximum [Member]
Ownership Percentage		9.99%
Purchase Agreement [Member] | Maximum [Member] | Measurement Input, Risk Free Interest Rate [Member]
Debt Instrument, Measurement Input																	0.0397		0.0397			0.0397
Purchase Agreement [Member] | Maximum [Member] | Measurement Input, Expected Term [Member]
Debt Instrument, Measurement Input																	1.53		1.53			1.53
SLR Agreement [Member]
Debt Instrument, Face Amount																$ 4,000,000
Debt Instrument, Term																24 months
Debt Instrument, Multiplication of Face Value of Account																85.00%
Debt Instrument, Finance Fee, Percentage																2.00%
Debt Instrument, Service Fee Rate																0.30%
Debt Instrument, Financing Fee, Percentage Used in Calculation																8.33%
Debt Instrument, Basis Spread on Variable Rate																2.00%
Debt Instrument, Minimum Utilization																$ 400,000
Interest Expense, Debt																			$ 0		$ 19,000	$ 45,000	$ 52,000
Commitment Fee Expense																			$ 0		$ 10,000	$ 73,000	$ 30,000
[1] Refer to Note 5 for information regarding the YP Warrant issued in connection with the YP Note.