XML 16 R31.htm IDEA: XBRL DOCUMENT v3.19.3
Note 11 - Equity-based Compensation (Tables)
9 Months Ended
Sep. 30, 2019
Notes Tables  
Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]
   

Restricted

Stock

   

Weighted

Average Grant

Date Fair Value

Per Share

 

Outstanding as of December 31, 2018

    40,876     $ 610.88  

Granted

    12,359     $ 853.76  

Forfeited

    (4,056 )   $ 710.10  

Vested and issued

    (11,177 )   $ 491.89  

Outstanding as of September 30, 2019

    38,002     $ 714.27  
                 

Vested and unissued as of September 30, 2019

    5,678     $ 527.85  
Share-based Payment Arrangement, Stock Appreciation Right, Activity [Table Text Block]
   

Stock

Appreciation

Rights

   

Weighted

Average

Exercise

Price

   

Weighted

Average

Grant

Date Fair
Value

   

Aggregate

Intrinsic

Value

(in thousands)

   

Weighted

Average

Remaining

Contractual

Term

(in years)

 

Outstanding as of December 31, 2018

    90,605     $ 550.60     $ 122.29     $ 24,673       7.2  

Granted

    24,500     $ 832.36     $ 196.52     $ -       8.9  

Exercised

    (18,771 )   $ 493.25     $ 106.47                  

Forfeited

    (3,103 )   $ 659.01     $ 154.49                  

Outstanding as of September 30, 2019

    93,231     $ 632.58     $ 143.91     $ 58,001       7.6  
                                         

Vested and exercisable as of September 30, 2019

    40,564     $ 474.73     $ 100.89     $ 31,639       6.3  
Schedule of Share-based Payment Award, Other than Options, Valuation Assumptions [Table Text Block]
   

2019

 

Expected volatility

    21.79

%

Risk-free interest rate

    2.38

%

Expected term (in years)

    6.25  

Expected dividend yield

    0.96

%