Annual report pursuant to Section 13 and 15(d)

Income Taxes - Additional Information (Detail)

v3.10.0.1
Income Taxes - Additional Information (Detail) - USD ($)
Sep. 29, 2018
Sep. 30, 2017
Income Tax Disclosure [Abstract]    
State tax net operating losses $ 116,600,000  
Foreign losses 4,300,000  
State income tax credits 3,500,000  
Valuation allowances 6,809,000 $ 6,527,000
Accrued interest (less than) 100,000  
Penalties were accrued related to uncertain tax positions 0  
Unrecognized tax benefit may be recognized within twelve months as a result of a settlement 500,000  
Decrease in unrecognized tax benefits $ 100,000