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Shareholders' Equity
 9 Months Ended
Sep. 30, 2020
Shareholders' Equity [Abstract]  
Shareholders' Equity
(11)  Shareholders' Equity:

On August 31, 2017, the Company's Board of Directors authorized the reinstatement of its share repurchase program for up to 2,464,209 shares of the Company's Class A or Class B Common Stock.  No duration has been placed on the Company's share repurchase program, and the Company reserves the right to amend, suspend or discontinue it at any time.  The share repurchase program does not commit the Company to repurchase any shares of its common stock.
During the nine months ended September 30, 2020, the Company paid $1,782 to repurchase 126,764 shares of Class B Common Stock under the share repurchase program.  No share repurchases have been made since March 20, 2020.

The following table illustrates changes in accumulated other comprehensive income (loss) by component for the nine months ended September 30, 2020:

  
Foreign
Currency
    
Unrealized Holding Gains (Losses) on
Available-for-sale Securities
    
Total
  
Beginning balance at December 31, 2019
  
$
(494
)
  
$
9,863
    
$
9,369
  
                         
Other comprehensive income (loss) before reclassifications
    
(307
)
    
4,678
      
4,371
  
Amounts reclassified from accumulated other comprehensive income (loss)
    
–
      
445
      
445
  
                         
Net current-period other comprehensive income (loss)
    
(307
)
    
5,123
      
4,816
  
                         
Ending balance at September 30, 2020
  
$
(801
)
  
$
14,986
    
$
14,185
  

The following table illustrates changes in accumulated other comprehensive income (loss) by component for the nine months ended September 30, 2019:

  
Foreign
Currency
    
Unrealized Holding Gains (Losses) on
Available-for-sale Securities
    
Total
  
Beginning balance at December 31, 2018
  
$
(1,139
)
  
$
(6,208
)
  
$
(7,347
)
                         
Other comprehensive income (loss) before reclassifications
    
402
      
16,588
      
16,990
  
Amounts reclassified from accumulated other comprehensive income (loss)
    
–
      
(49
)
    
(49
)
                         
Net current-period other comprehensive income (loss)
    
402
      
16,539
      
16,941
  
                         
Ending balance at September 30, 2019
  
$
(737
)
  
$
10,331
    
$
9,594