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Management of Capital (Tables)
 12 Months Ended
Dec. 31, 2017
Disclosure Of Objectives Policies And Processes For Managing Capital [Abstract]  
Summary of Capital

 

 

 

December 31,

2017

 

 

December 31,

2016

 

Equity

$

 

196,585

 

$

 

143,086

 

Equipment financing

 

 

-

 

 

 

378

 

 

 

 

196,585

 

 

 

143,464

 

Less: Cash and cash equivalents

 

 

(31,474

)

 

 

(33,877

)

Less: Short-term investments

 

 

(20,082

)

 

-

 

 

$

 

145,029

 

$

 

109,587