Note 5 - Debt (Details Textual)
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3 Months Ended |
6 Months Ended |
12 Months Ended |
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Oct. 22, 2025
USD ($)
$ / shares
shares
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Jul. 10, 2025
USD ($)
$ / shares
shares
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Jul. 07, 2025
USD ($)
shares
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Jun. 13, 2025
USD ($)
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May 30, 2025
$ / shares
shares
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May 12, 2025
USD ($)
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Mar. 28, 2025
USD ($)
$ / shares
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Mar. 26, 2025
USD ($)
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Feb. 15, 2025
USD ($)
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Feb. 10, 2025
USD ($)
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Nov. 19, 2024
USD ($)
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Nov. 14, 2024
USD ($)
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Nov. 08, 2024
USD ($)
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Jun. 30, 2025
USD ($)
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Jun. 30, 2026
USD ($)
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Jun. 30, 2025
USD ($)
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Dec. 31, 2025
USD ($)
$ / shares
shares
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Mar. 31, 2026 |
Aug. 11, 2025
USD ($)
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Jul. 15, 2025
USD ($)
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Jun. 15, 2025
USD ($)
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Aug. 31, 2024
USD ($)
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Dec. 17, 2023
USD ($)
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| Conversion of Diagonal Note into Common Stock [Member] |
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| Debt Conversion, Original Debt, Amount |
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$ 320,000
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| Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ / shares |
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$ 28.44
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| Debt Conversion, Converted Instrument, Shares Issued (in shares) | shares |
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11,334
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| Conversion of Diagonal II Note into Common Stock [Member] |
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| Debt Conversion, Original Debt, Amount |
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$ 157,000
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| Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ / shares |
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$ 9.72
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| Debt Conversion, Converted Instrument, Shares Issued (in shares) | shares |
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13,084
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| Pre-Funded Warrant [Member] |
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| Class of Warrant or Right, Issued During Period | shares |
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14,419
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59,833
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| Shares Issued, Price Per Share | $ / shares |
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$ 4.79
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| Belleau Warrants [Member] |
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| Class of Warrant or Right, Issued During Period | shares |
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10,417
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| Belleau Warrants [Member] | Measurement Input, Expected Term [Member] |
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| Warrants and Rights Outstanding, Measurement Input |
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2
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| Belleau Warrants [Member] | Measurement Input, Share Price [Member] |
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| Warrants and Rights Outstanding, Measurement Input |
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31.2
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| Belleau Warrants [Member] | Measurement Input, Price Volatility [Member] |
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| Warrants and Rights Outstanding, Measurement Input |
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0.93
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| Belleau Warrants [Member] | Measurement Input, Risk Free Interest Rate [Member] |
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| Warrants and Rights Outstanding, Measurement Input |
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0.0345
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| Scenario, Plan [Member] | Agile Exchange Agreement [Member] |
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| Shares Issued, Price Per Share | $ / shares |
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$ 68.04
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| Scenario, Plan [Member] | Belleau Exchange [Member] |
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| Shares Issued, Price Per Share | $ / shares |
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$ 12
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| Scenario, Plan [Member] | Common Stock [Member] | Agile Exchange Agreement [Member] |
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| Stock Issued During Period, Shares, Equity Exchange | shares |
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3,678
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| Scenario, Plan [Member] | Common Stock [Member] | Belleau Exchange [Member] |
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| Stock Issued During Period, Shares, Equity Exchange | shares |
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83,334
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| Scenario, Plan [Member] | Series AAAA Junior Convertible Preferred Stock [Member] |
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| Stock Issued During Period, Shares, Equity Exchange | shares |
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1,500,000
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| Agile Loan Agreement [Member] |
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| Debt Instrument, Face Amount |
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$ 1,850,000
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| Debt Instrument, Term |
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196 days
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| Interest Expense, Short-Term Borrowings |
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$ 780,000
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| Debt Instrument, Default, Basis Spread on Variable Rate |
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5.00%
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| Debt Instrument, Interest Rate, Effective Percentage |
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42.00%
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| Debt Instrument, Number of Payments |
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28
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| Debt Instrument, Periodic Payment |
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$ 93,821
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| Repayments of Debt |
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$ 1,500,000
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$ 1,500,000
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| Debt Instrument, Fee Amount |
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$ 92,500
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| Debt Instrument, Interest Rate, Stated Percentage |
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42.00%
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| Interest Expense, Debt |
[1] |
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$ 563,000
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| Agile II Note [Member] |
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| Debt Instrument, Face Amount |
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$ 2,500,000
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| Debt Instrument, Term |
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224 days
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| Debt Instrument, Default, Basis Spread on Variable Rate |
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5.00%
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| Debt Instrument, Interest Rate, Effective Percentage |
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42.00%
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| Debt Instrument, Number of Payments |
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32
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| Debt Instrument, Periodic Payment |
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$ 25,000
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$ 110,937
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| Interest Payable |
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1,050,000.00
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| Debt Instrument, Fee Amount |
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$ 125,000
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| Long-Term Debt, Gross |
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1,331,250
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| Debt Issuance Costs Incurred During Noncash or Partial Noncash Transaction |
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100,000
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| Gain (Loss) on Extinguishment of Debt |
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$ (256,000)
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| Debt Instrument, Interest Rate, Stated Percentage |
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42.00%
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| Interest Expense, Debt |
[1] |
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656,000
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| Agile and Agile II [Member] |
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| Proceeds from (Repayments of) Debt |
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$ 875,000
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| Diagonal Note [Member] |
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| Debt Instrument, Face Amount |
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$ 300,000
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| Debt Instrument, Fee Amount |
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$ 7,000
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| Debt Instrument, Interest Rate, Stated Percentage |
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10.00%
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| Debt Instrument, Default, Interest Rate |
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22.00%
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| Debt Instrument, Discount, Percent |
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4.75%
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| Proceeds from Issuance of Debt |
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$ 279,000
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| Interest Expense, Debt |
[1] |
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0
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| Diagonal II Note [Member] |
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| Debt Instrument, Face Amount |
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$ 145,200
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| Debt Instrument, Fee Amount |
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$ 7,000
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| Debt Instrument, Interest Rate, Stated Percentage |
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10.00%
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| Debt Instrument, Default, Interest Rate |
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22.00%
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| Debt Instrument, Discount, Percent |
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4.75%
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| Proceeds from Issuance of Debt |
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$ 125,000
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| Belleau Purchase Agreement [Member] |
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| Debt Instrument, Face Amount |
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$ 1,500,000
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$ 1,250,000
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| Debt Instrument, Interest Rate, Stated Percentage |
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20.00%
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| Debt Instrument, Convertible, Conversion Price (in dollars per share) | $ / shares |
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$ 168
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| Debt Instrument, Redemption Price, Percentage |
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20.00%
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| Repayments of Long-Term Debt |
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$ 250,000
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| Interest Expense, Debt |
[1] |
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0
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| Belleau Exchange Agreement [Member] |
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| Long-Term Debt, Gross |
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$ 1,000,000
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| Gains (Losses) On Exchange Of Debt |
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$ (1,871,000)
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| RP Note [Member] |
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|
|
|
|
|
|
|
|
|
| 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%
|
|
|
|
|
|
|
|
|
|
|
|
|
| Interest Expense, Debt |
[1] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
148,000
|
|
|
|
|
|
|
|
| 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
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Gain (Loss) on Extinguishment of Debt |
|
|
|
$ 26,000
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| SuperBiz Note [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Debt Instrument, Face Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 1,800,000
|
|
| Debt Instrument, Interest Rate, Stated Percentage |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
20.00%
|
|
|
|
|
|
|
| Drozdov Agreement [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Debt Instrument, Face Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 18,750
|
$ 18,750
|
|
|
| Khakshoor Agreement [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Debt Instrument, Face Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
18,750
|
18,750
|
|
|
| Firepit Agreement [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Debt Instrument, Face Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 12,500
|
$ 12,500
|
|
|
| SLR Agreement [Member] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Debt Instrument, Face Amount |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 4,000,000
|
| Debt Instrument, Multiplication of Face Value of Account |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
85.00%
|
| Interest Expense, Debt |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 37,000
|
|
45,000
|
|
|
|
|
|
|
|
| Commitment Fee Expense |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
$ 63,000
|
|
$ 73,000
|
|
|
|
|
|
|
|
|
|