Annual report pursuant to section 13 and 15(d)

Accounting Policies (Detail Textual)

v2.4.0.8
Accounting Policies (Detail Textual) (USD $)
 12 Months Ended
Sep. 29, 2013
Sep. 30, 2012
Oct. 03, 2010
Accounting Policies [Line Items]      
Allowance for doubtful accounts $ 15,000 $ 0  
Net income loss related to inventories 74,000 166,000  
Inventory reserve period increase 149,000    
Warranty period 15 months 15 months  
Warranty reserve 25,000 25,000  
Depreciation method straight line method    
Estimated useful lives of the assets three to seven years    
Maximum amount of invoices for milestone event 3,900,000    
Revenue recognized for achieving substantive milestone events 0 656,000  
Customer advances and deposits 2,700,000    
Short term customer advance deposits for next twelve months 769,000 776,000  
Long term customer advance deposits after September 2014 1,935,000 1,944,000  
Customer deposits for completed milestones 575,000 2,720,000  
Loss on contract     1,100,000
Loss related to production     800,000
Federal government simplified acquisition threshold 700,000    
Difference in book income and taxable income (6,000)    
Maximum
      
Accounting Policies [Line Items]      
Delivery period 36 months    
Minimum
      
Accounting Policies [Line Items]      
Delivery period 3 months    
U.S. Government Agencies
      
Accounting Policies [Line Items]      
Concentration risk, percentage 30.00%    
General Dynamics
      
Accounting Policies [Line Items]      
Concentration risk, percentage 47.00%    
Inventory reserve period increase 485,000    
Term of inventory contract 5 years    
Contract amount in milestone event $ 8,000,000    
BAE Systems
      
Accounting Policies [Line Items]      
Concentration risk, percentage 12.00%    
Other Contractors
      
Accounting Policies [Line Items]      
Concentration risk, percentage 11.00%    
Series A Preferred Stock
      
Accounting Policies [Line Items]      
Antidilutive securities excluded from computation of earnings per share, amount 1,016 1,023  
Stock Options
      
Accounting Policies [Line Items]      
Antidilutive securities excluded from computation of earnings per share, amount 48,247,649 48,477,649  
Warrants
      
Accounting Policies [Line Items]      
Antidilutive securities excluded from computation of earnings per share, amount 4,547,000 4,547,000