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Note 8 - Bank Debt (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
May 16, 2024
Jan. 03, 2024
Mar. 02, 2021
Jun. 30, 2024
Jun. 30, 2024
Jun. 30, 2023
Dec. 31, 2023
Nov. 27, 2023
Nov. 26, 2023
Payments to Acquire Productive Assets         $ 1,768,093 $ 866,127      
Heany Industries, LLC [Member]                  
Business Combination, Consideration Transferred   $ 6,550,000     6,600,000        
North 52nd Properties LLC [Member]                  
Payments to Acquire Productive Assets $ 6,900,000     $ 6,900,000          
North 52nd Properties LLC [Member] | MidFirst Loan Agreement [Member]                  
Debt Instrument, Face Amount $ 5,900,000                
Debt Instrument, Interest Rate, Stated Percentage 7.14%                
Debt Instrument, Covenant, Minimum Net Worth $ 10,000,000                
J P Morgan Chase Bank [Member]                  
Line of Credit Facility, Covenant, Maximum Annual Amount Payable in Dividends or Other Restricted Payments               $ 2,000,000 $ 1,250,000
Line of Credit, Covenant, Repurchase of Company Equity               $ 7,000,000  
J P Morgan Chase Bank [Member] | Prime Rate [Member] | Term Debt [Member]                  
Debt Instrument, Basis Spread on Variable Rate     0.25%            
J P Morgan Chase Bank [Member] | Letter of Credit [Member]                  
Line of Credit Facility, Maximum Borrowing Capacity     $ 3,000,000            
J P Morgan Chase Bank [Member] | Revolving Credit Facility [Member]                  
Line of Credit Facility, Remaining Borrowing Capacity       $ 20,100,000 $ 20,100,000   $ 24,900,000    
J P Morgan Chase Bank [Member] | Revolving Credit Facility [Member] | Prime Rate [Member]                  
Debt Instrument, Basis Spread on Variable Rate     0.25%            
J P Morgan Chase Bank [Member] | Revolving Credit Facility [Member] | Secured Overnight Financing Rate (SOFR) [Member]                  
Debt Instrument, Basis Spread on Variable Rate     1.75%