v3.26.1
Note 8 - Debt (Details Textual)
1 Months Ended 3 Months Ended 5 Months Ended 9 Months Ended 12 Months Ended 14 Months Ended
Dec. 26, 2025
USD ($)
$ / shares
shares
Sep. 09, 2025
USD ($)
Sep. 02, 2025
USD ($)
shares
Nov. 12, 2024
USD ($)
Sep. 30, 2025
USD ($)
shares
Mar. 31, 2026
USD ($)
Mar. 31, 2025
USD ($)
Sep. 30, 2023
USD ($)
Sep. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
May 31, 2025
USD ($)
Jul. 31, 2025
USD ($)
Jul. 31, 2024
USD ($)
Apr. 30, 2024
USD ($)
Apr. 01, 2024
Proceeds from Issuance of Debt                   $ 9,700,000            
Amortization of Debt Issuance Costs                   2,294,000 $ (0)          
Interest Payable                   0 725,000          
Repayments of Convertible Debt           $ 7,379,000 $ (0)     25,000 (0)          
Conversion of the Nexus Note to Common Stock [Member]                                
Debt Conversion, Original Debt, Amount     $ 3,500,000                          
Debt Conversion, Original Debt Interest, Amount     $ 200,000                          
Debt Conversion, Converted Instrument, Shares Issued (in shares) | shares     4,054,517   4,050,000.00                      
Conversion of the Another Dimension Note to Common Stock [Member]                                
Debt Conversion, Original Debt, Amount     $ 3,500,000                          
Debt Conversion, Original Debt Interest, Amount     $ 200,000                          
Debt Conversion, Converted Instrument, Shares Issued (in shares) | shares     4,054,517                          
The 2025 Senior Secured Note Holders [Member]                                
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares $ 2.675                              
Warrants and Rights Outstanding, Term (Year) 5 years                              
The 2025 Senior Secured Note Holders [Member] | Common Stock Warrants [Member]                                
Class of Warrant or Right, Issued During Period (in shares) | shares 7,009,346                              
Class of Warrant or Right, Issued During Period, Fair Value $ 8,100,000                              
The 2025 Senior Secured Note Holders [Member] | Placement Agent [Member]                                
Class of Warrant or Right, Issued During Period (in shares) | shares 700,934                              
Class of Warrant or Right, Issued During Period, Fair Value $ 800,000                              
The 2025 Senior Secured Note [Member]                                
Debt Instrument, Face Amount 15,000,000                              
Proceeds from Issuance of Debt 13,500,000                              
Debt Instrument, Unamortized Discount $ 1,500,000                              
Debt Instrument, Unamortized Discount, Percent 10.00%                              
Debt Issuance Costs, Net $ 1,500,000                              
Debt Instrument, Periodic Payment 1,764,706                              
Debt Instrument, Qualified Equity Financing, Periodic Payment $ 882,353                              
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger 93.00%                              
Debt Instrument, Convertible, Threshold Trading Days 5                              
Debt Instrument, Covenant, Liquidity Amount $ 4,000,000                              
Debt Instrument, Default, Interest Rate 15.00%                              
Debt Instrument, Repurchase Price, Percent 105.00%                              
Long-Term Debt, Gross $ 5,400,000                 5,448,000 0          
Long-Term Debt, Fair Value           2,200,000       5,400,000            
Change in Fair Value of Debt           $ 100,000       12,000.000            
Amortization of Debt Issuance Costs                   2,300,000            
The 2025 Senior Secured Note [Member] | Maximum [Member]                                
Debt Instrument, Amount That Can Be Settled in Shares $ 3,500,000                              
The 2023 Convertible Notes [Member]                                
Debt Instrument, Face Amount               $ 4,200,000         $ 4,200,000      
Long-Term Debt, Gross                   0 4,160,000          
Debt Instrument, Interest Rate, Stated Percentage               6.00%                
Interest Payable                   0 375,000          
Debt Instrument, Term (Year)               2 years                
Debt Instrument, Divisor               3.2714                
Convertible Debt Instrument, Conversion Price Equal to Lowest Price per Share, Pre-stock Split                         50.00%      
Debt Instrument, Amended Amount                         $ 4,100,000      
Convertible Debt Instrument, Conversion Price Equal to Lowest Price per Share                         23.00%      
Repayments of Convertible Debt   $ 25,000.000                            
Fair Value of Derivative Liabilities         $ 3,100,000       $ 3,100,000              
Amortization                 3,100,000              
The 2023 Convertible Notes [Member] | Unsecured Debt Converted to Common Shares [Member]                                
Debt Conversion, Original Debt, Amount     $ 4,100,000   4,100,000                      
Debt Conversion, Original Debt Interest, Amount     $ 500,000   $ 500,000                      
Debt Conversion, Converted Instrument, Shares Issued (in shares) | shares     5,029,463   5,000,000                      
The 2023 Convertible Notes [Member] | Hunniwell Picard I, LLC [Member]                                
Debt Instrument, Face Amount               $ 0.3                
The 2024 Convertible Note [Member]                                
Debt Instrument, Face Amount                       $ 5,700,000   $ 5,700,000 $ 15,000,000  
Long-Term Debt, Gross                   0 $ 10,746,000          
Debt Instrument, Interest Rate, Stated Percentage                       6.00%     6.00%  
Debt Instrument, Term (Year)                       6 months        
Convertible Debt Instrument, Conversion Price Equal to Lowest Price per Share, Pre-stock Split                       50.00%   50.00%   80.00%
Debt Instrument, Amended Amount                           $ 2,700,000    
Convertible Debt Instrument, Conversion Price Equal to Lowest Price per Share                       23.00%   23.00%   37.00%
Fair Value of Derivative Liabilities                   1,800,000   $ 1,800,000        
Amortization                   1,400,000            
Convertible Debt Instrument, Principal Raised                   $ 5,700,000            
The 2024 Convertible Note [Member] | Unsecured Debt Converted to Common Shares [Member]                                
Debt Conversion, Original Debt, Amount     $ 5,700,000   $ 5,700,000                      
Debt Conversion, Original Debt Interest, Amount     $ 300,000                          
Debt Conversion, Converted Instrument, Shares Issued (in shares) | shares     6,496,363   6,500,000                      
Aggregated Convertible Note [Member]                                
Debt Instrument, Face Amount       $ 7,000,000 $ 7,000,000       $ 7,000,000              
Convertible Note, Donated Value Received in Shares       50.00%