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Note 3 - Net Investment in Sales Type Lease (Tables)
6 Months Ended
Jun. 30, 2023
Notes Tables  
Sales-Type and Direct Financing Leases, Payment to be Received, Maturity [Table Text Block]
   

Amount

 

2023 (remainder)

    35,850  

2024

    71,700  

2025

    71,700  

2026

    26,875  

2027

    22,800  

Total undiscounted cash flows

    228,925  

Present value discount

    18,979  

Net investment in lease as of June 30, 2023

  $ 209,946