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Note 4 - Fair Value Measurements (Tables)
3 Months Ended
Sep. 30, 2020
Notes Tables  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
  

Total

carrying

value as of

  

Fair Value Measurements Using

Inputs Considered as

 
  

September

30, 

2020

  

Level 1

  

Level 2

  

Level 3

 

Assets

                

Equity securities (1)

 $83,491  $76,043  $7,448  $- 

Certificates of deposit (2)

  34,495   34,495   -   - 

Total assets

 $117,986  $110,538  $7,448  $- 
                 

Liabilities

                

Contingent consideration

 $5,987  $-  $-  $5,987 

Derivative instruments - cash flow hedges

  14,523   -   14,523   - 

Total liabilities

 $20,510  $-  $14,523  $5,987 
  

Total

carrying

value as of

  

Fair Value Measurements Using

Inputs Considered as

 
  

June 30,

2020

  

Level 1

  

Level 2

  

Level 3

 

Assets

                

Equity securities (1)

 $87,842  $79,846  $7,996  $- 

Certificates of deposit (2)

  36,426   36,426   -   - 

Total assets

 $124,268  $116,272  $7,996  $- 
                 

Liabilities

                

Contingent consideration

 $6,137  $-  $-  $6,137 

Derivative instruments - cash flow hedges

  17,331   -   17,331   - 

Total liabilities

 $23,468  $-  $17,331  $6,137 
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
  

Quarter Ended

 
  

September 30,

2020

 

Fair value at the beginning of period

 $6,137 

Change in fair value of contingent consideration

  (150)

Payments

  - 

Fair value at the end of period

 $5,987