Annual report pursuant to Section 13 and 15(d)

Income Tax - Significant Components of Company's Deferred Tax Assets (Detail)

v2.4.0.8
Income Tax - Significant Components of Company's Deferred Tax Assets (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Income Tax Disclosure [Abstract]    
Tax basis in excess of book value of assets $ 951 $ 930
Non-capital loss carryforwards 72,115 62,489
Research and development deductions and credits 6,857 6,212
Stock options 2,578 2,077
Capital loss carryforward   51
Restructuring liability 1,567 1,799
Other 70 51
Total deferred tax assets 84,138 73,609
Valuation allowance $ (84,138) $ (73,609)