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FAIR VALUE MEASUREMENTS (Tables)
3 Months Ended
Mar. 31, 2021
FAIR VALUE MEASUREMENTS  
Schedule of fair value, liabilities measured on recurring and nonrecurring basis

The following tables provide the fair value measurements of applicable financial liabilities as of March 31, 2021 and December 31, 2020:

    

Financial liabilities at fair value as of March 31, 2021

(in thousands)

    

Level 1

    

Level 2

    

Level 3

    

Total

  

  

  

  

5% Notes

$

$

$

880

$

880

Total

$

$

$

880

$

880

    

Financial liabilities at fair value as of December 31, 2020

    

Level 1

    

Level 2

    

Level 3

    

Total

 

  

 

  

 

  

 

  

5% Notes

$

$

$

938

$

938

Total

$

$

$

938

$

938

Schedule of change in level three fair value during period

The following table summarizes the changes in Level 3 instruments during the three months ended March 31, 2021:

(in thousands)

Balance at December 31, 2020

938

Interest accrued on face value of 5% Notes

 

250

Change in fair value of Level 3 liabilities

 

(308)

Balance at March 31, 2021

$

880