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Note 10 - Income Taxes (Tables)
12 Months Ended
Oct. 01, 2016
Notes Tables  
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
 
 
Year Ended
 
(Dollars in thousands)
 
October 1,
2016
 
 
October 3,
2015
 
 
September 27,
2014
 
Provision for income taxes:
                       
Current:
                       
Federal
  $ 17,075     $ 10,149     $ 8,196  
State
    1,434       772       330  
      18,509       10,921       8,526  
Deferred:
                       
Federal
    396       222       (323 )
State
    140       111       364  
      536       333       41  
                         
Income taxes
  $ 19,045     $ 11,254     $ 8,567  
                         
Effective income tax rate
    33.8 %     34.1 %     34.0 %
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
 
 
Year Ended
 
(Dollars in thousands)
 
October 1, 2016
 
 
October 3, 2015
 
 
September 27, 2014
 
Provision for income taxes at federal statutory rate
  $ 19,701       35.0 %   $ 11,537       35.0 %   $ 8,823       35.0 %
Qualified production activities deduction
    (1,596 )     (2.8 )     (1,005 )     (3.0 )     (755 )     (3.0 )
Valuation allowance
    (213 )     (0.4 )     (55 )     (0.2 )     (183 )     (0.7 )
State income taxes, net of federal tax benefit
    1,093       1.9       612       1.9       577       2.3  
Other, net
    60       0.1       165       0.4       105       0.4  
Provision for income taxes
  $ 19,045       33.8 %   $ 11,254       34.1 %   $ 8,567       34.0 %
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
 
 
October 1,
 
 
October 3,
 
(In thousands)
 
2016
 
 
2015
 
Deferred tax assets:
 
 
 
 
 
 
 
 
Defined benefit plans
  $ 3,497     $ 3,755  
Accrued expenses and asset reserves
    2,942       2,596  
Stock-based compensation
    1,652       2,054  
State net operating loss carryforwards and tax credits
    354       658  
Goodwill, amortizable for tax purposes
    277       559  
Valuation allowance
    (280 )     (492 )
Deferred tax assets
    8,442       9,130  
                 
Deferred tax liabilities:
 
 
 
 
 
 
 
 
Plant and equipment
    (12,915 )     (12,285 )
Prepaid insurance and other reserves
    (999 )     (1,410 )
Deferred tax liabilities
    (13,914 )     (13,695 )
Net deferred tax liability
  $ (5,472 )   $ (4,565 )