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Note 5 - Long-Term Debt (Tables)
12 Months Ended
Dec. 31, 2022
Notes Tables  
Schedule of Maturities of Long-Term Debt [Table Text Block]

Year ending December 31,

 

Principal

2023

 $1,344,000

2024

 2,094,000

2025

 2,469,000

2026

 7,594,000

2027

 164,000
  $13,665,000