Annual report pursuant to Section 13 and 15(d)

Income Taxes Income Taxes - Effective Income Tax Rate Reconciliation (Details)

v2.4.0.8
Income Taxes Income Taxes - Effective Income Tax Rate Reconciliation (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Income Tax Reconciliation [Line Items]      
Provision (benefit) at statutory rate $ (4,191) $ (4,390) $ (5,111)
State income tax (net of federal benefit) 1 (1,247) 24
Research and development credits (3,630) (858) (3,320)
Foreign rate differential (80) 445 1,182
Stock compensation 460 278 974
Foreign dividend 835 0 94
Estimated export compliance fines and penalties 0 (255) 255
Foreign tax credits 0 0 (236)
Uncertain tax position 266 199 236
Permanent and other 356 (45) 24
Valuation allowance 6,385 6,214 12,871
Total income tax provision (benefit) $ 402 $ 341 $ 6,993