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Income Taxes (Tables)
12 Months Ended
Dec. 28, 2012
Income Tax Disclosure [Abstract]  
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

The provision for income taxes consists of the following (in thousands):

 

  2012  2011  2010 
Current tax provision:            
U.S. federal $  $  $ 
State  11   13   13 
Foreign  1,125   1,012   602 
Total current provision  1,136   1,025   615 
Deferred tax provision:            
U.S. federal and state         
Foreign  108   331   (183)
Total deferred provision  108   331   (183)
Provision for income taxes $1,244  $1,356  $432
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

The provision (benefit) for income before taxes differs from the amount computed by applying the statutory federal income tax rate to income before taxes as follows (in thousands):

 

  2012  2011  2010 
Computed provision for taxes based on income at statutory rate  34.0% $(176)  34.0% $919   34.0% $(1,252)
Increase (decrease) in taxes resulting from:                        
Permanent differences  (7.9)  41   1.4   37   (0.9)  33 
State minimum taxes, net of federal income tax benefit  (1.4)  8   0.3   9   (0.2)  9 
Stock options  (56.0)  290             
State tax benefit  9.2   (48)  (4.3)  (116)  5.6   (207)
Tax rate difference due to foreign statutory rate  (43.8)  227   (19.7)  (529)  5.7   (208)
Foreign tax benefit  3.1   (16)  11.6   312   3.7   (137)
Foreign earnings not permanently reinvested  (223.4)  1,158   29.1   788       
Foreign dividend withholding  (22.1)  114   5.5   147   (12.0)  440 
FAS 123R              (23.7)  873 
Expiration of charitable contribution carryover  (16.1)  83         (0.2)  6 
Other  1.1   (6)  1.4   37   0.4   (13)
Valuation allowance  83.2   (431)  (9.2)  (248)  (24.1)  888 
Effective tax provision rate  (240.1)% $1,244   50.1% $1,356   (11.7)% $432
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

Significant components of the Company's deferred tax assets (liabilities) as of December 28, 2012 and December 30, 2011 are as follows (in thousands):

 

 2012  2011 
Current deferred tax assets (liabilities):        
Allowance for doubtful accounts and sales returns $89  $90 
Inventories  190   270 
Accrued vacation  534   490 
Other  (111)  (110)
State taxes  3   3 
Accrued legal judgment and other accrued expenses  187   211 
Valuation allowance  (1,331)  (1,426)
Total current deferred tax liabilities $(439) $(472)
Non-current deferred tax assets (liabilities):        
Net operating loss carryforwards  51,533   51,334 
Stock-based payments  1,602   1,311 
Business, foreign and AMT credit carryforwards  844   788 
Capitalized R&D  605   597 
Contributions  58   160 
Pensions  877   812 
Depreciation and amortization  202   54 
Foreign tax withholding  (885)  (711)
Foreign earnings not permanently reinvested  (5,783)  (4,789)
Other  11   33 
Valuation allowance  (49,762)  (50,145)
Total non-current deferred tax liabilities $(698) $(556)
Schedule Of Tax Years [Table Text Block]

The following tax years remain subject to examination:

Significant Jurisdictions Open Years
U.S. Federal 2009 – 2011
California 2008 – 2011
Switzerland 2010 – 2011
Japan 2008 – 2011
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

Income (loss) from continuing operations before provision for income taxes is as follows (in thousands):

 

  2012  2011  2010 
Domestic $(2,967) $(2,145) $(4,732)
Foreign  2,448   4,849   1,051 
  $(519) $2,704  $(3,681)