Segment Reporting (Details Narrative)	9 Months Ended
Jun. 28, 2026 ft² Integer
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Reportable segments	2
Leased facilities \| ft²	93,967
Number of employees	140
Optex Systems (OPX) - Richardson, Texas [Member]
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Leased facilities \| ft²	49,100
Number of employees	95
Applied Optics Center (AOC) - Dallas [Member]
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Leased facilities \| ft²	44,867
Number of employees	45
Revenue Benchmark [Member] \| Customer Concentration Risk [Member] \| Applied Optics Center (AOC) - Dallas [Member]
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Concentration risk percentage	43.00%
Revenue Benchmark [Member] \| Customer Concentration Risk [Member] \| Domestic Military Customers [Member] \| Optex Systems (OPX) - Richardson, Texas [Member]
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Concentration risk percentage	91.00%
Revenue Benchmark [Member] \| Customer Concentration Risk [Member] \| Foreign Military Customers [Member] \| Optex Systems (OPX) - Richardson, Texas [Member]
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Concentration risk percentage	9.00%
Revenue Benchmark [Member] \| Customer Concentration Risk [Member] \| Optex Systems (OPX) - Richardson, Texas [Member] \| Optex Systems (OPX) - Richardson, Texas [Member]
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Concentration risk percentage	57.00%
Revenue Benchmark [Member] \| Customer Concentration Risk [Member] \| US Defense Contractor [Member] \| Optex Systems (OPX) - Richardson, Texas [Member]
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Concentration risk percentage	19.00%
Revenue Benchmark [Member] \| Customer Concentration Risk [Member] \| U.S. Defense Contractor One [Member] \| Optex Systems (OPX) - Richardson, Texas [Member]
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Concentration risk percentage	19.00%
Revenue Benchmark [Member] \| Customer Concentration Risk [Member] \| U.S. Defense Contractor Two [Member] \| Optex Systems (OPX) - Richardson, Texas [Member]
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Concentration risk percentage	13.00%
Revenue Benchmark [Member] \| Customer Concentration Risk [Member] \| Commercial Customers [Member] \| Applied Optics Center (AOC) - Dallas [Member]
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Concentration risk percentage	10.00%
Revenue Benchmark [Member] \| Customer Concentration Risk [Member] \| Subcontracted Customers [Member] \| Applied Optics Center (AOC) - Dallas [Member]
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Concentration risk percentage	90.00%
Revenue Benchmark [Member] \| Customer Concentration Risk [Member] \| External Customers [Member] \| Applied Optics Center (AOC) - Dallas [Member]
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Concentration risk percentage	92.00%
Revenue Benchmark [Member] \| Customer Concentration Risk [Member] \| Major U.S. Defense Contractor One [Member]
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Concentration risk percentage	23.00%
Revenue Benchmark [Member] \| Customer Concentration Risk [Member] \| Major U.S. Defense Contractor One [Member] \| Applied Optics Center (AOC) - Dallas [Member]
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Concentration risk percentage	11.00%
Revenue Benchmark [Member] \| Customer Concentration Risk [Member] \| Major US Defense Contractor Two [Member]
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Concentration risk percentage	13.00%
Revenue Benchmark [Member] \| Customer Concentration Risk [Member] \| Major US Defense Contractor Two [Member] \| Applied Optics Center (AOC) - Dallas [Member]
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Concentration risk percentage	9.00%
Revenue Benchmark [Member] \| Customer Concentration Risk [Member] \| Major US Defense Contractor Three [Member]
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Concentration risk percentage	11.00%
Revenue Benchmark [Member] \| Customer Concentration Risk [Member] \| Major US Defense Contractor Three [Member] \| Applied Optics Center (AOC) - Dallas [Member]
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Concentration risk percentage	8.00%
Intersegment Sales Revenue Net [Member] \| Customer Concentration Risk [Member] \| Military Contracts [Member] \| Applied Optics Center (AOC) - Dallas [Member]
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Customer, Extent of Reliance [Line Items]
Concentration risk percentage	8.00%

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- Definition

Area of land held.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

+ Details

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 280
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-Name Accounting Standards Codification
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