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Stock Compensation (Tables)
 12 Months Ended
Dec. 31, 2018
Stock Compensation [Abstract]  
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]
 
 
Restricted Stock Units
 
 
Units
 
Aggregate Fair Value (1)
 
 
 
 
 
Outstanding at January 1, 2018
 
—

 
$
—

Granted
 
148,883

 
1,070,500

Less:
 
 
 
 
Vested
 
—

 
—

Forfeited
 
(30,111
)
 
(216,498
)
Outstanding at December 31, 2018
 
118,772

 
$
854,002

(1) Fair value per share of restricted stock units on December 31, 2018 was equal to Grant Date fair value per share, which was calculated based on the closing price of the Company's Class A common stock on the NYSE on the grant date, in accordance with ASC Topic 718.