Schedule of Non-cancellable Operating Leases Minimum Payments (Details) - USD ($) $ in Thousands		Sep. 29, 2024		Oct. 01, 2023
MinimumLeasePaymentsLineItems [Line Items]
2025 Base year lease		$ 656
2026 Base year lease		662
2027 Base year lease		679
2028 Base year lease		572
2029 Base year lease		83
Total base lease payments		2,652
Imputed interest on lease payments	[1]	(254)
Total Operating Lease Liability	[2]	2,398
Right-of-use Asset		2,233	[3]	$ 2,740
Common Area Maintenance Estimate [Member]
MinimumLeasePaymentsLineItems [Line Items]
2025 Base year lease		274
2026 Base year lease		280
2027 Base year lease		285
2028 Base year lease		207
2029 Base year lease		31
Total base lease payments		1,077
Optex Richardson [Member]
MinimumLeasePaymentsLineItems [Line Items]
2025 Base year lease		336
2026 Base year lease		346
2027 Base year lease		357
2028 Base year lease		242
2029 Base year lease
Total base lease payments		1,281
Imputed interest on lease payments	[1]	(114)
Total Operating Lease Liability	[2]	1,167
Right-of-use Asset	[3]	1,079
Applied Optics Center [Member]
MinimumLeasePaymentsLineItems [Line Items]
2025 Base year lease		305
2026 Base year lease		313
2027 Base year lease		322
2028 Base year lease		330
2029 Base year lease		83
Total base lease payments		1,353
Imputed interest on lease payments	[1]	(139)
Total Operating Lease Liability	[2]	1,214
Right-of-use Asset	[3]	1,137
Office Equipment Lease [Member]
MinimumLeasePaymentsLineItems [Line Items]
2025 Base year lease		15
2026 Base year lease		3
2027 Base year lease
2028 Base year lease
2029 Base year lease
Total base lease payments		18
Imputed interest on lease payments	[1]	(1)
Total Operating Lease Liability	[2]	17
Right-of-use Asset	[3]	$ 17

[1] Assumes a discount borrowing rate of 5.0% on the new lease amendments effective as of January 11, 2021.

[2] Includes $165 thousand of unamortized deferred rent.

[3] Short-term and Long-term portion of Operating Lease Liability is $638 thousand and $1,760 thousand, respectively.