Quarterly report pursuant to Section 13 or 15(d)

Segment Reporting (Details Narrative)

Segment Reporting (Details Narrative)	6 Months Ended
Segment Reporting (Details Narrative)	Apr. 01, 2018 ft² Employee
Number of employees	89
Sales Revenue, Net [Member] \| U.S. government [Member]
Percentage of revenue	34.00%
Sales Revenue, Net [Member] \| U.S Defense Contractor [Member]
Percentage of revenue	24.00%
Optex Systems (OPX) - Richardson, Texas [Member]
Number of employees	51
Leased facilities \| ft²	49,100
Optex Systems (OPX) - Richardson, Texas [Member] \| Sales Revenue, Net [Member] \| Domestic Military Customers [Member]
Percentage of revenue	76.00%
Optex Systems (OPX) - Richardson, Texas [Member] \| Sales Revenue, Net [Member] \| Foreign Military Customers [Member]
Percentage of revenue	23.00%
Optex Systems (OPX) - Richardson, Texas [Member] \| Sales Revenue, Net [Member] \| Commercial Customers [Member]
Percentage of revenue	1.00%
Optex Systems (OPX) - Richardson, Texas [Member] \| Sales Revenue, Net [Member] \| U.S. government [Member]
Percentage of revenue	24.00%
Optex Systems (OPX) - Richardson, Texas [Member] \| Sales Revenue, Net [Member] \| U.S Defense Contractor [Member]
Percentage of revenue	23.00%
Applied Optics Center (AOC) - Dallas [Member]
Number of employees	38
Leased facilities \| ft²	44,867
Applied Optics Center (AOC) - Dallas [Member] \| Sales Revenue, Net [Member] \| Commercial Customers [Member]
Percentage of revenue	65.00%
Applied Optics Center (AOC) - Dallas [Member] \| Sales Revenue, Net [Member] \| U.S. government [Member]
Percentage of revenue	10.00%
Applied Optics Center (AOC) - Dallas [Member] \| Sales Revenue, Net [Member] \| Revenues from External Customers [Member]
Percentage of revenue	84.00%
Applied Optics Center (AOC) - Dallas [Member] \| Sales Revenue, Net [Member] \| Subcontracted Customers [Member]
Percentage of revenue	35.00%
Applied Optics Center (AOC) - Dallas [Member] \| Sales Revenue, Net [Member] \| One Major Commercial Customers [Member]
Percentage of revenue	29.00%
Applied Optics Center (AOC) - Dallas [Member] \| Intersegment Sales Revenue [Member] \| Military Contracts [Member]
Percentage of revenue	16.00%