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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2019
Accounting Policies [Abstract]  
Schedule of Net Interest Expense Net interest expense consisted of the following:
Year Ended December 31
2019
 
2018
 
2017
Interest expense
$
472

 
$
374

 
$
117

Interest income
(12
)
 
(18
)
 
(14
)
Interest expense, net
$
460

 
$
356

 
$
103