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Stock Compensation Plan (Tables)
 6 Months Ended
Jun. 30, 2020
Share-based Payment Arrangement [Abstract]  
Schedule of stock options vested during the period
The following table presents information regarding Options that vested during the six months ended June 30, 2020: 
Options vested
67,054

Aggregate grant date fair value of Options vested (in millions)
$
1.0
Schedule of outstanding stock options
The following table presents information regarding outstanding Options:
 
 
June 30, 2020
 
December 31, 2019
Options outstanding
 
387,530

 
416,548

Aggregate intrinsic value (in millions)
 
$
0.9

 
$
3.9

Per share weighted average exercise price
 
$
70.71

 
$
70.08

Exercisable Options
 
358,617

 
318,029

Aggregate intrinsic value (in millions)
 
$
0.9

 
$
3.9

Unvested Options
 
28,913

 
98,519

Per share weighted average grant date fair value
 
$
14.73

 
$
14.41