v3.25.1
Note 7 - Bank Debt (Details Textual) - USD ($)
3 Months Ended
May 16, 2024
Mar. 02, 2021
Mar. 31, 2025
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2024
Payments to Acquire Productive Assets     $ 412,603   $ 436,820  
North 52nd Properties LLC [Member]            
Payments to Acquire Productive Assets $ 6,900,000     $ 6,900,000    
Down Payment to Acquire Productive Assets 1,000,000          
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] | 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]            
Long-Term Line of Credit     $ 17,100,000     $ 30,000,000
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%