Annual report pursuant to Section 13 and 15(d)

Income Taxes - Additional Information (Detail)

v2.4.0.8
Income Taxes - Additional Information (Detail) (USD $)
12 Months Ended
Sep. 27, 2014
Sep. 28, 2013
Schedule Of Income Taxes [Line Items]    
Federal tax net operating losses $ 6,600,000  
Federal tax net operating losses expiration year 2033  
State tax net operating losses 102,600,000  
Foreign losses 1,500,000  
Federal income tax credits 1,400,000  
State income tax credits 3,600,000  
Valuation allowances 6,215,000 6,968,000
Period of uncertain tax positions as non-current income tax liabilities unless expected to be paid 1 year  
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 100,000  
Stock Options [Member]
   
Schedule Of Income Taxes [Line Items]    
Net operating loss carryforwards 1,200,000  
Maximum [Member]
   
Schedule Of Income Taxes [Line Items]    
State tax net operating losses expiration year 2034  
Federal income tax credits expiration year 2034  
State income tax credits expiration year 2030  
Accrued interest $ 100,000 $ 100,000
Minimum [Member]
   
Schedule Of Income Taxes [Line Items]    
State tax net operating losses expiration year 2014  
Federal income tax credits expiration year 2024  
State income tax credits expiration year 2014