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Note I - Debt Obligations (Details Textual) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Apr. 05, 2024
Aug. 30, 2023
Jan. 31, 2023
Jan. 26, 2023
Nov. 30, 2023
Dec. 31, 2024
Dec. 31, 2023
Mar. 01, 2024
Nov. 17, 2023
Stock Issued During Period, Shares, Acquisitions (in shares)         1,382,489   7,530,509    
Proceeds from Issuance of Debt           $ 58,990 $ 42,431    
Debt Issuance Costs, Net           1,127 82    
Wells Fargo Bank, N.A. [Member]                  
Long-Term Line of Credit             $ 37,700    
Wells Fargo Bank, N.A. [Member] | Prime Rate [Member]                  
Debt Instrument, Basis Spread on Variable Rate       2.25%          
Wells Fargo Bank, N.A. [Member] | Minimum [Member]                  
Line of Credit Facility, Maximum Borrowing Capacity, Percentage of Investments       80.00%          
Wells Fargo Bank, N.A. [Member] | Maximum [Member]                  
Line of Credit Facility, Maximum Borrowing Capacity, Percentage of Investments       90.00%          
SWK Loans [Member]                  
Payments to Acquire Notes Receivable   $ 12,000 $ 12,000            
Stock Issued During Period, Shares, Acquisitions (in shares)   98,683 98,683            
Nantahala Note [Member]                  
Debt Instrument, Face Amount   $ 5,000 $ 5,000           $ 5,000
Debt Instrument, Interest Rate, Stated Percentage   9.00%              
Debt Instrument, Interest Rate, Stated Percentage, If Unpaid Within Six Months   12.00%              
Debt Instrument, Interest Rate, Increase in Stated Percentage, If Unpaid Within Six Months   3.00%           3.00%  
Debt Instrument, Interest, Shares, Consecutive Trading Days For Calculation of VWAP (Day)   20 days              
Debt Instrument, Periodic Payment, Interest   $ 600              
Term Loans Under Credit Agreement [Member                  
Debt Instrument, Face Amount $ 100,000                
Proceeds from Issuance of Debt 60,000                
Debt Instrument, Available Amount Until 18 Months Following Closing Date 20,000                
Debt Instrument, Available Amount Until 18 Months Following Closing Date, Maximum Each Drawing 10,000                
Debt Instrument, Available Amount Until December 31, 2024 20,000                
Debt Instrument, Net Product Sales Performance Benchmark 100,000                
Debt Instrument, Net Product Sales Performance Benchmark in Next Year $ 125,000                
Debt Instrument, Maximum Interest Payment, Percentage 25.00%                
Interest Payable           1,400      
Debt Issuance Costs, Net           2,200      
Debt Instrument, Minimum Cash Balance           $ 20,000      
Term Loans Under Credit Agreement [Member | Secured Overnight Financing Rate (SOFR) [Member]                  
Debt Instrument, Basis Spread on Variable Rate 7.00%                
Debt Instrument, Basis Spread on Variable Rate When Performance Benchmark Meet 6.00%                
Debt Instrument, Basis Spread on Variable Rate When Performance Benchmark Meet in Next Year 6.50%                
Debt Instrument, Floor Rate 4.00%