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Debt (Tables)
12 Months Ended
Dec. 31, 2018
Debt Disclosure [Abstract]  
Schedule of Debt
The Company has no debt outstanding at December 31, 2018. Debt outstanding consisted of the following at December 31, 2017:
 
December 31, 2017
Debt
 
Current portion of Senior Secured Debenture
$
8,377

Non-current portion of Senior Secured Debenture
2,611

Total debt
$
10,988