Annual report pursuant to Section 13 and 15(d)

Income Taxes Income Taxes - Components of Deferred Income Tax Assets (Details)

v2.4.0.8
Income Taxes Income Taxes - Components of Deferred Income Tax Assets (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Deferred Tax Assets, Net [Abstract]    
Net operating loss carryforwards $ 8,545 $ 8,216
Research and development credits 12,718 9,088
Accrued expenses and other 476 403
Employee compensation 1,686 1,567
Stock-Based compensation 2,732 3,184
Deferred tax assets, depreciation and amortization 2,637 0
Deferred tax assets, gross 28,794 22,458
Less valuation allowance (28,628) (22,243)
Deferred tax assets, net of valuation allowance 166 215
Deferred Tax Liabilities, Net [Abstract]    
Depreciation and amortization 0 (215)
Deferred Tax Assets, Net $ 166 $ 0