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Accumulated Other Comprehensive Loss (Tables)
 12 Months Ended
Dec. 31, 2017
Equity [Abstract]  
Changes in Accumulated Other Comprehensive Loss
The following table shows the changes in Accumulated Other Comprehensive Loss by component for the years ended December 31, 2017 and 2016:
 
 
 
2017
 
2016
 
Beginning balance
 
$
––
 
$
(451)
 
Unrealized Gain on investments, current period
 
 
––
 
 
451
 
Ending balance
 
$
––
 
$
––