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Note 7 - Loan Payable (Tables)
6 Months Ended
Jun. 30, 2021
Notes Tables  
Schedule of Standby Fees Based on Total Funded Debt to EBITDA Ratio [Table Text Block]
  If Total Funded Debt to EBITDA is: 

Availment type or fee

 Less than 1.00  Greater than or equal to 1.00 and less than 2.00  Greater than or equal to 2.00 and less than 2.50  Greater than or equal to 2.50 

Canadian dollar borrowings based on Bankers’ Acceptance or U.S. dollar borrowings based on LIBOR (Margin)

  1.50%  1.85%  2.35%  2.85%

Canadian or U.S. dollar borrowings based on Prime Rate or U.S. dollar borrowings based on Base Rate (Margin)

  0.25%  0.60%  1.10%  1.60%

Standby fees

  0.30%  0.37%  0.47%  0.57%
Schedule of Debt [Table Text Block]
  

June 30, 2021

  

December 31, 2020

 
         

Revolver

 $140,400  $122,400 

Less: unamortized debt discount and issuance costs

  (533)  (667)

Total loan payable

  139,867   121,733 

Less: loan payable, current portion

  -   - 

Loan payable, long-term portion

 $139,867  $121,733 
Schedule of Maturities of Long-term Debt [Table Text Block]

Remainder of 2021

 $- 

2022

  - 

2023

  140,400 
  $140,400