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Note 4 - Long-term Debt, Net (Details Textual) - USD ($)
3 Months Ended 9 Months Ended
Sep. 30, 2024
Aug. 19, 2024
Apr. 02, 2024
Mar. 17, 2024
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Aug. 01, 2025
Mar. 10, 2025
Nov. 14, 2024
Long-Term Debt, Gross         $ 25,690,000   $ 25,690,000        
Repayments of Long-Term Debt             53,445,000 $ 56,214,000      
Gain (Loss) on Extinguishment of Debt         0 $ 0 0 (1,009,000)      
Proceeds from Convertible Debt             0 2,050,000      
Convertible Notes Payable, Fair Value Adjustment         554,000 2,810,000 156,000 $ 2,810,000      
Convertible Notes [Member]                      
Debt Instrument, Face Amount         $ 2,364,000   $ 2,364,000        
Proceeds from Convertible Debt   $ 2,050,000                  
Debt Instrument, Interest Rate, Stated Percentage   13.00%     13.00%   13.00%        
Debt Instrument, Convertible, Conversion Price (in dollars per share)   $ 3.01                  
Convertible Notes Payable, Fair Value Adjustment   $ 2,110,000     $ 554,000   $ 156,000        
Convertible Debt, Fair Value Disclosures         $ 3,876,000   $ 3,876,000        
Convertible Notes [Member] | Minimum [Member]                      
Debt Instrument, Convertible, Conversion Price (in dollars per share)   $ 1                  
Notes Payable to Banks [Member]                      
Debt Instrument, Face Amount       $ 2,000,000              
Debt Instrument, Basis Spread on Variable Rate             11.00% 11.00%      
Debt Instrument, Interest Rate, Effective Percentage       16.32% 15.32%   15.32%        
Debt Instrument, Quarterly Principal Amortization       $ 250,000              
Notes Payable to Banks [Member] | Maximum [Member]                      
Debt Instrument, Collateral Amount       $ 1,000,000              
Notes Payable to Banks [Member] | CME Term SOFR [Member]                      
Debt Instrument, Basis Spread on Variable Rate       11.00%              
SLR Credit Agreement [Member]                      
Long-Term Debt, Gross         $ 22,576,000   $ 22,576,000        
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage     0.50%                
Debt Instrument, Term (Year)     5 years                
Debt Instrument, Basis Spread on Variable Rate 5.75%   5.25%                
Debt Instrument, Secured Overnight Financing Rate SOFR Floor     1.50%                
Line of Credit Facility, Fixed Charge Coverage Ratio     1.1                
Debt Instrument, Interest Rate, Effective Percentage     10.81%   10.18%   10.18%        
Debt Issuance Costs, Net         $ 703,000   $ 703,000        
Debt Instrument, Unamortized Discount         1,038,000   $ 1,038,000        
Debt Instrument, Covenants, Additional Capital to Raise   $ 2,000,000                 $ 7,500,000
SLR Credit Agreement [Member] | Minimum [Member]                      
Debt Instrument, Covenants, Additional Capital to Raise                 $ 8,500 $ 5,000,000  
SLR Credit Agreement [Member] | Secured Overnight Financing Rate (SOFR) [Member]                      
Debt Instrument, Basis Spread on Variable Rate     0.26161%                
SLR Credit Agreement [Member] | Base Rate [Member]                      
Debt Instrument, Basis Spread on Variable Rate 5.75%   5.25%       5.75% 5.25%      
Debt Instrument, Reduced Basis Spread on Variable Rate     5.00%                
SLR Credit Agreement [Member] | Revolving Credit Facility [Member]                      
Line of Credit Facility, Maximum Borrowing Capacity     $ 30,000                
Long-Term Debt, Gross         $ 0   $ 0        
SLR Credit Agreement [Member] | Term Loan [Member]                      
Debt Instrument, Face Amount     $ 20,000,000                
Citizens Term Loan [Member]                      
Repayments of Long-Term Debt           30,000          
Gain (Loss) on Extinguishment of Debt           $ (1,009)