XML 16 R55.htm IDEA: XBRL DOCUMENT v2.4.0.6
Income Taxes (Detail) (USD $)
 3 Months Ended 3 Months Ended 36 Months Ended 3 Months Ended
Jul. 29, 2012
Jul. 31, 2011
Apr. 29, 2012
Jul. 29, 2012
Deferred Income Taxes Net Noncurrent [Member]
Jul. 29, 2012
Income Taxes Payable - Long-Term [Member]
Jul. 29, 2012
United States [Member]
Apr. 29, 2012
United States [Member]
Jul. 29, 2012
China [Member]
Apr. 29, 2012
China [Member]
Jul. 29, 2012
Poland [Member]
Apr. 29, 2012
Poland [Member]
Jul. 29, 2012
Canada [Member]
Apr. 29, 2012
Canada [Member]
Jul. 29, 2012
Canada and China [Member]
Jul. 31, 2011
Canada and China [Member]
Income Taxes [Line Items]                              
Income tax rate 34.40% 38.60%                          
Income taxes $ 1,848,000 $ 1,145,000                          
Statutory rate 34.00% 34.00%                          
Increase in income tax rate from an increase in unrecognized tax benefits 5.00% 11.00%                          
Reduction in income tax rate from the lower statutory income tax rates in foreign jurisdictions compared with the U.S statutory income tax rate (5.00%) (7.00%)                       (5.00%) (7.00%)
Increase in income tax rate for stock-based compensation and other miscellaneous items 0.40% 0.60%                          
Valuation allowance           12,800,000 12,800,000                
Operating loss carryforwards             59,900,000                
Income before income taxes 5,372,000 2,965,000       1,200,000 11,900,000                
Current deferred tax asset 2,337,000 1,237,000 2,467,000 [1]     1,900,000 2,100,000 387,000 405,000            
Non-current deferred tax asset 2,715,000 2,191,000 3,205,000 [1]     1,600,000 2,100,000 929,000 1,000,000 169,000 115,000        
Non-current deferred tax liability 705,000 596,000 705,000 [1]                 705,000 705,000    
Unrecognized tax benefits 12,600,000     8,500,000 4,100,000                    
Unrecognized tax benefits that would favorably impact effective income tax rate if recognized 4,100,000                            
Expected increase in unrecognized tax benefits related to double taxation under applicable tax treaties with foreign tax jurisdictions $ 819,000                            
[1] Derived from audited financial statements.