Annual report pursuant to Section 13 and 15(d)

Income Taxes - Additional Information (Detail)

v3.5.0.2
Income Taxes - Additional Information (Detail) - USD ($)
Sep. 24, 2016
Sep. 26, 2015
Schedule Of Income Taxes [Line Items]    
State tax net operating losses $ 101,800,000  
Foreign losses 400,000  
State income tax credits 3,600,000  
Valuation allowances 6,583,000 $ 6,205,000
Penalties were accrued related to uncertain tax positions 0 0
Unrecognized tax benefit may be recognized within twelve months as a result of a settlement 200,000  
Maximum [Member]    
Schedule Of Income Taxes [Line Items]    
Accrued interest $ 100,000 $ 100,000