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Note 9 - Debt, Credit Facility and Leases (Tables)
9 Months Ended
Sep. 30, 2020
Notes Tables  
Schedule of Line of Credit Facilities [Table Text Block]

Interest rates:

   

Spread over the London Interbank Offered Rate

2.25-4.00%

Spread over alternative base rate

1.25-3.00%

Standby fee per annum on undrawn amounts

0.5625-1.00%

Covenant financial ratios:

   

Senior leverage ratio (debt secured by liens/EBITDA)

not more than 2.50:1

Leverage ratio (total debt less unencumbered cash/EBITDA)

not more than 4.00:1

Interest coverage ratio (EBITDA/interest expense)

not less than 3.00:1

Finance Lease, Liability, Fiscal Year Maturity [Table Text Block]

Twelve-month period ending September 30,

    

2021

 $6,549 

2022

  4,508 

2023

  2,604 

2024

  1,328 

Total

  14,989 

Less: imputed interest

  (919)

Net finance lease obligation

 $14,070 
Lessee, Operating Lease, Liability, Maturity [Table Text Block]

Twelve-month period ending September 30,

    

2021

 $3,883 

2022

  3,120 

2023

  2,569 

2024

  1,035 

2025

  531 

More than 5 years

  2,464 

Total

  13,602 

Effect of discounting

  (1,657)

Operating lease liability

 $11,945