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Note 11 - Fair Value of Financial Instruments
12 Months Ended
Mar. 31, 2020
Notes to Financial Statements  
Fair Value Disclosures [Text Block]
11.
Fair Value of Financial Instruments
 
The carrying amount and estimated fair values of the Company's debt are summarized as follows:
 
   
2020
   
2019
 
   
Carrying
   
Estimated
   
Carrying
   
Estimated
 
   
Amount
   
Fair Value
   
Amount
   
Fair Value
 
   
(In thousands)
 
                                 
Long-term debt, including current portion
  $
217,581
    $
217,559
    $
266,245
    $
266,140
 
 
The estimated fair value for long-term debt is determined by the quoted market prices for similar debt (comparable to the Company’s financial strength) or current rates offered to the Company for debt with the same maturities which is Level
2
from the fair value hierarchy. Since quoted prices for identical instruments in active markets are
not
available (Level
1
), the Company makes use of observable market based inputs to calculate fair value, which is Level
2.