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Note 9 - Long-term Debt (Tables)
9 Months Ended
Sep. 30, 2020
Notes Tables  
Schedule of Long-term Debt Instruments [Table Text Block]
   

September 30,

   

December 31,

 

(dollars in thousands)

 

2020

   

2019

 

Principal

  $ 105,000     $ 105,000  

Unamortized debt issuance costs

  $ 695     $ 951  
Schedule of Interest and Amortizations Expense [Table Text Block]
   

For the Three Months Ended September 30,

   

For the Nine Months Ended September 30,

 

(dollars in thousands)

 

2020

   

2019

   

2020

   

2019

 

Interest Expense:

                               

Interest

  $ 1,662     $ 1,662     $ 4,987     $ 4,987  

Amortization

    85       85       256       256