Annual report [Section 13 and 15(d), not S-K Item 405]

Summary of Significant Accounting Policies (Details Narrative)

v3.25.3
Summary of Significant Accounting Policies (Details Narrative) - USD ($)
 12 Months Ended
Sep. 28, 2025
Sep. 29, 2024
Oct. 01, 2023
Product Information [Line Items]      
Cash on deposit $ 6,389,000 $ 1,009,000  
Cash balance $ 4,000,000.0    
Annual interest rate 3.84%    
Interest income $ 35,000    
Federal deposit insurance amount   250,000  
Allowance for doubtful accounts 5,000 15,000  
Bad debt expenses associated with uncollectible accounts 4,000 10,000  
Obsolete and excess inventory 800,000    
Inventory reserves 700,000    
Additional reserves 100,000    
Increase in net inventory 541,000 (2,710,000)  
Warranty reserve 162,000 52,000 $ 75,000
Revenue from customer deposit liabilities 186,000 226,000  
Accrued selling expenses 141,000 237,000  
Contract assets 142,000 219,000  
Customer advance deposits 234,000 255,000  
Contract loss reserves current 132,000 259,000  
Unamortized intangible assets impaired 800,000    
Intangible assets 0    
Deferred tax assets gross 1,972,000 1,720,000  
Deferred tax asset valuation allowance 773,000 773,000  
Income tax expense $ 1,204,000 $ 1,006,000  
Unvested Rectricted Stock Units [Member]      
Product Information [Line Items]      
Dilutive securities included in calculation of earning per share 74,000 66,500  
Unvested Rectricted Stock [Member]      
Product Information [Line Items]      
Dilutive securities included in calculation of earning per share 32,800 60,000  
Number of incremental shares 58,377 71,129  
Optex Systems Inc [Member]      
Product Information [Line Items]      
Deferred tax assets net $ 1,200,000 $ 900,000  
Deferred tax assets gross 2,000,000.0 1,700,000  
Deferred tax asset valuation allowance 800,000 800,000  
Income tax expense 1,200,000 1,000,000.0  
Transferred over Time [Member]      
Product Information [Line Items]      
Revenue recognized over time $ 517,000 $ 483,000  
Minimum [Member]      
Product Information [Line Items]      
Property and equipment, estimated useful lives 3 years    
Maximum [Member]      
Product Information [Line Items]      
Property and equipment, estimated useful lives 7 years    
U.S. Government Agencies [Member] | Revenue Benchmark [Member] | Customer Concentration Risk [Member]      
Product Information [Line Items]      
Concentration risk percentage 29.00% 20.00%  
U.S. Government Agencies [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]      
Product Information [Line Items]      
Concentration risk percentage 12.00% 15.00%  
Major U.S. Defense Contractor One [Member] | Revenue Benchmark [Member] | Customer Concentration Risk [Member]      
Product Information [Line Items]      
Concentration risk percentage 19.00% 25.00%  
Major U.S. Defense Contractor One [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]      
Product Information [Line Items]      
Concentration risk percentage 27.00% 26.00%  
Major U.S. Defense Contractor Two [Member] | Revenue Benchmark [Member] | Customer Concentration Risk [Member]      
Product Information [Line Items]      
Concentration risk percentage 10.00% 7.00%  
Major U.S. Defense Contractor Two [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]      
Product Information [Line Items]      
Concentration risk percentage 22.00% 10.00%  
Major U.S. Defense Contractor Three [Member] | Revenue Benchmark [Member] | Customer Concentration Risk [Member]      
Product Information [Line Items]      
Concentration risk percentage 6.00% 6.00%  
Major U.S. Defense Contractor Three [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]      
Product Information [Line Items]      
Concentration risk percentage 8.00% 9.00%  
Major U.S. Defense Contractor Four [Member] | Revenue Benchmark [Member] | Customer Concentration Risk [Member]      
Product Information [Line Items]      
Concentration risk percentage 6.00% 6.00%  
Major U.S. Defense Contractor Four [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]      
Product Information [Line Items]      
Concentration risk percentage 6.00% 7.00%  
All Other Customers [Member] | Revenue Benchmark [Member] | Customer Concentration Risk [Member]      
Product Information [Line Items]      
Concentration risk percentage 30.00% 23.00%  
One Major Commercial Customer [Member] | Revenue Benchmark [Member] | Customer Concentration Risk [Member]      
Product Information [Line Items]      
Concentration risk percentage   13.00%  
Eight Customers [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]      
Product Information [Line Items]      
Concentration risk percentage 91.00%    
Major U.S. Defense Contractor Five [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]      
Product Information [Line Items]      
Concentration risk percentage 6.00% 7.00%  
Major U.S. Defense Contractor Six [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]      
Product Information [Line Items]      
Concentration risk percentage 5.00%    
Major U.S. Defense Contractor Seven [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]      
Product Information [Line Items]      
Concentration risk percentage 5.00%    
Seven Customers [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]      
Product Information [Line Items]      
Concentration risk percentage   79.00%  
Foreign Military Customer [Member] | Accounts Receivable [Member] | Customer Concentration Risk [Member]      
Product Information [Line Items]      
Concentration risk percentage   5.00%