v3.26.1
Note 5 - Long-Term Debt (Details Textual) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 19, 2026
Jun. 14, 2026
Jun. 04, 2026
Apr. 19, 2026
Apr. 14, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Jun. 15, 2026
Mar. 29, 2026
Mar. 28, 2026
Proceeds from Issuance of Long-Term Debt                   $ 7,838,000 $ 0        
Gain (Loss) on Fair Value of Debt               $ (229,000) $ 0 (229,000) 0        
Long-Term Line of Credit $ 0             0   0          
Discontinued Operation, Loss (Gain) From Debt Extinguishment, Net of Tax                   3,200,000          
Convertible Notes [Member]                              
Debt Instrument, Face Amount           $ 50,000,000                  
Debt Instrument, Increase in Sellable Amount                         $ 50,000,000    
Proceeds from Issuance of Long-Term Debt 8,250,000                            
Debt Instrument, Interest Rate, Stated Percentage     12.00%                        
Debt Instrument, Original Issue Discount, Rate     5.00%     5.00%                  
Debt Instrument, Covenant, Late Payment Rate     17.00%                        
Debt Instrument, Redemption Price, Event of Default, Percentage     125.00%                        
Debt Instrument, Redemption Price, Percentage     120.00%                        
Beneficial Ownership, Maximum Ownership Threshold Percentage Post Conversion     4.99%                        
Beneficial Ownership, Maximum Ownership Threshold Percentage Post Conversion, Increased Maximum     9.99%                        
Beneficial Ownership, Prior Written Notice Period for Increase in Percentage (Year)     61 years                        
Debt Instrument, Fair Value Disclosure 8,200,000             8,200,000   8,200,000          
Payments of Debt Issuance Costs               500,000   500,000          
Interest Payable 100,000             100,000   100,000          
Gain (Loss) on Fair Value of Debt               (200,000)              
Interest Expense, Debt               100,000   100,000          
Convertible Notes [Member] | Maximum [Member]                              
Debt Instrument, Face Amount                         $ 100,000,000    
April Convertible Note [Member]                              
Debt Instrument, Face Amount         $ 3,250,000                    
Proceeds from Issuance of Long-Term Debt         $ 3,250,000                    
Debt Instrument, Original Issue Discount, Rate         5.00%                    
Proceeds from Issuance of Long-Term Debt, Net   $ 2,800,000                          
Debt Instrument, Original Issue Discount         $ 200,000                    
Debt Instrument, Fair Value Disclosure 3,400,000       $ 3,100,000     3,400,000   3,400,000          
Payments of Debt Issuance Costs           $ 200,000                  
Gain (Loss) on Fair Value of Debt               (300,000)              
June Convertible Note [Member]                              
Debt Instrument, Face Amount       $ 5,000,000                      
Proceeds from Issuance of Long-Term Debt       5,000,000                      
Proceeds from Issuance of Long-Term Debt, Net       4,500,000                      
Debt Instrument, Original Issue Discount       300,000                      
Debt Instrument, Fair Value Disclosure $ 4,800,000     4,800,000       4,800,000   $ 4,800,000          
Payments of Debt Issuance Costs       $ 300,000                      
Gain (Loss) on Fair Value of Debt               $ 28,000              
Second Avenue Capital Partners LLC [Member] | Revolving Credit Facility [Member]                              
Line of Credit Facility, Maximum Borrowing Capacity             $ 50,000,000   50,000,000   50,000,000        
Line of Credit Facility, Maximum Borrowing Capacity, Additional             $ 25,000,000   25,000,000   25,000,000        
Line of Credit Facility, Commitment Fee Percentage             0.45%                
Proceeds from Lines of Credit             $ 5,000,000         $ 19,200,000      
Debt Issuance Costs, Net             $ 2,900,000   $ 2,900,000   $ 2,900,000        
Long-Term Line of Credit                       $ 17,300,000      
Debt Instrument, Covenant, Unrestricted Cash Required                           $ 7,500,000 $ 10,000,000
Debt Instrument, Covenant, Basket for Indebtedness Restriction                           1,206,905 855,000
Debt Instrument, Covenant, Unsecured Indebtedness Basket Restriction                           $ 11,000,000 $ 2,500,000
Second Avenue Capital Partners LLC [Member] | Revolving Credit Facility [Member] | Secured Overnight Financing Rate (SOFR) [Member]                              
Debt Instrument, Basis Spread on Variable Rate             0.15%                
Second Avenue Capital Partners LLC [Member] | Revolving Credit Facility [Member] | Base Rate [Member]                              
Debt Instrument, Basis Spread on Variable Rate             5.75%