Income taxes
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Dec. 31, 2013
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Income Tax Disclosure [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Income taxes |
A reconciliation of income taxes at the statutory Canadian income tax rate to net income taxes included in the accompanying statements of operations is as follows:
Deferred tax assets and liabilities reflect the net tax effects of net operating losses, credit carryforwards and temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and amounts used for income tax purposes. The components of the Company’s deferred tax assets and liabilities are as follows:
Based upon the level of historical taxable loss, management believes it is more likely than not that the Company will not realize the benefits of these deductible differences and accordingly has established a full valuation allowance as of December 31, 2013 and 2012. As of December 31, 2013, the Company had available total U.S. net operating loss carryforwards of approximately $54.4 million, which expire in the years 2017 through 2033. As of December 31, 2013, the Company had available total Canadian net operating loss carryforwards of approximately $22.0 million, which expire in the years 2014 through 2033. The Company follows a comprehensive model for recognizing, measuring, presenting and disclosing uncertain tax positions taken or expected to be taken on a tax return. Tax positions must initially be recognized in the financial statements when it is more likely than not the position will be sustained upon examination by the tax authorities. Such tax positions must initially and subsequently be measured as the largest amount of tax benefit that has a greater than 50% likelihood of being realized upon ultimate settlement with the tax authority assuming full knowledge of the position and relevant facts. The Company currently has no uncertain tax positions and is therefore not reflecting any adjustments for such in its deferred tax assets. There are open statutes of limitations for tax authorities in U.S., Canada and state jurisdictions to audit the Company’s tax returns for the years ended December 31, 2010, 2011 and 2012. The Company’s policy is to account for income tax related interest and penalties in income tax expense in the accompanying statements of operations. There have been no income tax related interest or penalties assessed or recorded. |