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Note 8 - Long-term Debt (Tables)
12 Months Ended
Dec. 31, 2019
Notes Tables  
Schedule of Maturities of Long-term Debt [Table Text Block]
2020
   
144,000
 
2021
   
148,000
 
2022
   
151,000
 
2023
   
156,000
 
2024
   
160,000
 
Thereafter
   
2,158,000
 
Total Principal
   
2,917,000
 
Less: Unamortized debt issuance costs
   
96,000
 
Less: Current portion
   
133,000
 
Long-term portion
  $
2,688,000