Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Accounting Policies (Policies)
Notes Tables
Notes Details

Commitments and Contingencies (Details Narrative)

v3.7.0.1

Commitments and Contingencies (Details Narrative)	1 Months Ended	3 Months Ended		6 Months Ended
Commitments and Contingencies (Details Narrative)	Oct. 31, 2016 USD ($)	Apr. 02, 2017 USD ($) ft²	Mar. 27, 2016 USD ($)	Apr. 02, 2017 USD ($) ft²	Mar. 27, 2016 USD ($)	Oct. 02, 2016 USD ($)
Total facilities rental and CAM expense		$ 161,000	$ 304,000	$ 327,000	$ 151,000
L3 Communications [Member]
Leased facilities (Square feet) \| ft²		12,000		12,000
Optex Systems (OPX) - Richardson, Texas [Member]
Leased facilities (Square feet) \| ft²		49,100		49,100
Expire period				Mar. 31, 2021
Unamortized deferred rent		$ 127,000		$ 127,000		$ 108,000
Optex Systems (OPX) - Richardson, Texas [Member] \| Minimum [Member]
Annual rental payment inflationary rate				3.40%
Optex Systems (OPX) - Richardson, Texas [Member] \| Maximum [Member]
Annual rental payment inflationary rate				4.80%
Applied Optics Center (AOC) - Dallas Sublease [Member]
Leased facilities (Square feet) \| ft²		44,867		44,867
Expire period				Oct. 30, 2021
Renewal term				5 years
Applied Optics Center (AOC) - Dallas [Member] \| Standby Letters of Credit [Member]
Secured Letter of credit		$ 250,000		$ 250,000
Remaining Borrowing Capacity		$ 125,000		$ 125,000
Applied Optics Center (AOC) - Dallas [Member] \| New Countersigned Facility Lease [Member]
Leased facilities (Square feet) \| ft²		44,867		44,867
Operating lease base rent	$ 19,400			$ 24,300
Common Area Maintenance fees and taxes				$ 4,900

- Definition

It represents the percentage of annual rental payment inflationary rate.

+ References

No definition available.

+ Details

Name:	opxs_AnnualRentalPaymentInflationaryRate
Namespace Prefix:	opxs_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

It represents the amount of expense related to common area maintenance fees and taxes.

+ References

No definition available.

+ Details

Name:	opxs_CommonAreaMaintenanceFeesAndTaxes
Namespace Prefix:	opxs_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Area of land held.

+ References

No definition available.

+ Details

Name:	us-gaap_AreaOfLand
Namespace Prefix:	us-gaap_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

For a classified balance sheet, the cumulative difference as of the balance sheet date between the payments required by a lease agreement and the rental income or expense recognized on a straight-line basis, or other systematic and rational basis more representative of the time pattern in which use or benefit is granted or derived from the leased property, expected to be recognized in income or expense, by the lessor or lessee, respectively, within one year of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 25
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=7501430&loc=d3e39927-112707

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.20)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DeferredRentCreditCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

No definition available.

+ Details

Name:	us-gaap_LeaseAndRentalExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Date which lease or group of leases is set to expire, in CCYY-MM-DD format.

+ References

No definition available.

+ Details

Name:	us-gaap_LeaseExpirationDate1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- Definition

Term of the lessee's leasing arrangement renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_LesseeLeasingArrangementsOperatingLeasesRenewalTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41499-112717

+ Details

Name:	us-gaap_OperatingLeasesRentExpenseNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	dei_LegalEntityAxis=opxs_L3CommunicationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=opxs_OptexSystemsOPXRichardsonTexasMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=opxs_AppliedOpticsCenterAOCDallasSubleaseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=opxs_AppliedOpticsCenterAOCDallasMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_StandbyLettersOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LeaseArrangementTypeAxis=opxs_NewCountersignedFacilityLeaseMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: