XML 114 R68.htm IDEA: XBRL DOCUMENT v2.4.0.6
Income taxes (Details) (CAD)
In Thousands, unless otherwise specified
 12 Months Ended
Mar. 31, 2013
provincial_jurisdiction
Mar. 31, 2012
Mar. 31, 2011
Operating Loss Carryforwards [Line Items]      
Loss from continuing operations before income taxes (37,145) (34,618) (34,831)
Tax rate 25.12% 26.25% 27.75%
Expected benefit (9,331) (9,087) (9,666)
Increase (decrease) related to:      
Impact of enacted future statutory income tax rates 9 151 134
Income tax adjustments and reassessments 82 170 742
Valuation allowance 0 (91) 962
Stock-based compensation 344 (393) 1,443
Non deductible portion of capital losses 0 0 932
Other 60 15 348
Income tax benefit (8,836) (9,235) (5,105)
Current income tax (benefit) expense (2,209) (677) 2,892
Deferred income tax (benefit) (note 11) (6,627) (8,558) (7,997)
Deferred tax assets:      
Non-capital losses carried forward 43,307 51,614  
Derivative financial instruments 1,618 2,296  
Billings in excess of costs on uncompleted contracts 1,781 1,887  
Capital lease obligations 10,508 2,689  
Deferred lease inducements 111 134  
Stock-based compensation 1,508 1,402  
Other 539 420  
Total deferred tax assets 59,372 60,442  
Deferred tax liabilities:      
Unbilled revenue and uncertified revenue included in accounts receivable 7,965 13,039  
Assets held for sale 684 462  
Accounts receivable – holdbacks 6,787 8,071  
Property, plant and equipment 49,864 52,323  
Deferred financing costs 300 224  
Intangible assets 8 8  
Other 0 173  
Total deferred tax liabilities 65,608 74,300  
Net deferred income tax liability (6,236) (13,858)  
Net deferred tax liability classification      
Current asset 33,694 2,991  
Long term asset 14,673 57,451  
Current liability (13,392) (21,512)  
Long term liability (41,211) (52,788)  
Net deferred income tax liability (6,236) (13,858)  
Number of provincial jurisdictions 5    
Operating loss carryforwards 172,372    
2027
      
Net deferred tax liability classification      
Operating loss carryforwards 158    
2028
      
Net deferred tax liability classification      
Operating loss carryforwards 128    
2029
      
Net deferred tax liability classification      
Operating loss carryforwards 13,676    
2030
      
Net deferred tax liability classification      
Operating loss carryforwards 360    
2031
      
Net deferred tax liability classification      
Operating loss carryforwards 41,074    
2032
      
Net deferred tax liability classification      
Operating loss carryforwards 25,357    
2033
      
Net deferred tax liability classification      
Operating loss carryforwards 91,619    
Capital loss carryforward
      
Net deferred tax liability classification      
Valuation Allowance, Amount 962 962 962