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Consolidated Statements of Operations and Comprehensive Loss (Income) - CAD
CAD in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Income Statement [Abstract]    
Revenue CAD 213,180 CAD 281,282
Project costs 80,023 119,568
Equipment costs 60,020 89,784
Depreciation 40,794 40,040
Gross profit 32,343 31,890
General and administrative expenses 27,222 26,298
(Gain) loss on disposal of plant and equipment (116) 917
Gain on disposal of assets held for sale (note 8) (374) (152)
Amortization of intangible assets (note 10(b)) 1,688 1,990
Operating income before the undernoted 3,923 2,837
Interest expense (note 20) 5,784 9,880
Other income (1,375) 0
Foreign exchange loss (gain) 8 (35)
Loss on debt extinguishment (note 13(c)) 0 576
Loss before income taxes (494) (7,584)
Income tax benefit (note 11):    
Current 0 0
Deferred (49) (114)
Net income (loss) (445) (7,470)
Comprehensive income (loss) CAD (445) CAD (7,470)
Per share information    
Net loss - basic and diluted (in CAD per share) CAD (0.01) CAD (0.23)