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Note D - Debt Obligations (Details Textual) - USD ($)
$ in Thousands
1 Months Ended 6 Months Ended
Apr. 05, 2024
Aug. 30, 2023
Jan. 31, 2023
Jan. 26, 2023
Nov. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Mar. 01, 2024
Dec. 31, 2023
Nov. 17, 2023
Stock Issued During Period, Shares, Acquisitions (in shares)         1,382,489          
Proceeds from Issuance of Debt           $ 58,990 $ 12,800      
Debt Issuance Costs, Net           1,218     $ 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           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%