Commitments and Contingencies (Details Narrative)  | 
3 Months Ended | 6 Months Ended | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 
 Jan. 11, 2021  
USD ($) 
 | 
 Mar. 28, 2021  
USD ($)  
ft² 
 | 
 Mar. 29, 2020  
USD ($) 
 | 
 Mar. 28, 2021  
USD ($)  
ft² 
 | 
 Mar. 27, 2021  
USD ($) 
 | 
 Mar. 29, 2020  
USD ($) 
 | 
 Sep. 27, 2020  
USD ($) 
 | 
 Sep. 27, 2019  
USD ($) 
 | 
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| Area of land | ft² | 93,967 | 93,967 | |||||||||||||
| Expiration date | Oct. 31, 2021 | ||||||||||||||
| Monthly base rent | $ 11,000 | ||||||||||||||
| Least cost for equipment | $ 5,000 | $ 6,000 | 9,000 | $ 12,000 | |||||||||||
| Right of use asset | 3,842,000 | [1] | 3,842,000 | [1] | $ 1,416,000 | $ 1,800,000 | |||||||||
| Operating lease liability | 3,851,000 | [2] | 3,851,000 | [2] | $ 1,336,000 | [2] | $ 1,900,000 | ||||||||
| Current Lease Agreement [Member] | |||||||||||||||
| Lease description | The Company executed a first amendment extending the terms of its current Applied Optics Center, Dallas location lease for eighty-six (86) months, commencing on November 1, 2021 and ending on December 31, 2028. The initial base rent is set at $23.6 thousand as of January 1, 2022 and escalates 2.75% each year thereafter on January 1, each year. The initial term includes 2 months of rent abatement for November and December of 2021. The amendment provides for a five-year renewal option at the end of the lease term at the greater of the then "prevailing rental rate" or the then current base rent rate. | ||||||||||||||
| Monthly base rent | $ 23,600 | ||||||||||||||
| Esclated percentage | 2.75% | ||||||||||||||
| Facility Lease Agreement [Member] | |||||||||||||||
| Rent expenses | 18,300 | $ 17,900 | $ 36,100 | $ 354,000 | |||||||||||
| October 1, 2018 through December 31, 2021 [Member] | |||||||||||||||
| Lease description | The Company has one non-cancellable office equipment lease with a commencement date of October 1, 2018 and a term of 39 months. The lease cost for the equipment is $1.5 thousand per month from October 1, 2018 through December 31, 2021. | ||||||||||||||
| Least cost for equipment | $ 1,500 | ||||||||||||||
| November 1, 2021 [Member] | |||||||||||||||
| Right of use asset | 3,700,000 | $ 3,700,000 | |||||||||||||
| Operating lease liability | $ 3,700,000 | $ 3,700,000 | |||||||||||||
| Renewal term | 5 years | 5 years | |||||||||||||
| Applied Optics Center (AOC) - Dallas [Member] | |||||||||||||||
| Area of land | ft² | 44,867 | 44,867 | |||||||||||||
| Expiration date | Mar. 31, 2021 | ||||||||||||||
| Lease description | The monthly base rent was $24.6 thousand through March 31, 2021. On January 11, 2021 the Company executed a sixth amendment extending the terms of its Optex Systems, Richardson location lease for eighty-six (86) months, commencing on April 1, 2021 and ending on May 31, 2028. The initial base rent is set at $25.3 thousand and escalates 3% each year thereafter on April 1, each year. | ||||||||||||||
| Monthly base rent | $ 116,000 | ||||||||||||||
| Right of use asset | [1] | $ 1,892,000 | 1,892,000 | ||||||||||||
| Operating lease liability | [2] | $ 1,892,000 | $ 1,892,000 | ||||||||||||
| Optex Systems (OPX) - Chartwell Drive, Dallas, Texas [Member] | |||||||||||||||
| Area of land | ft² | 44,867 | 44,867 | |||||||||||||
| Expiration date | Oct. 31, 2021 | ||||||||||||||
| Lease description | The monthly base rent is $21.9 thousand through October 31, 2021. | ||||||||||||||
| Monthly base rent | $ 7,800 | ||||||||||||||
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