Estimated future cash outflow to pay for construction in progress expenditures that have occurred.

No definition available.

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- Definition

Amount of operating lease expense including real estate taxes and other costs.

+ References

No definition available.

+ Details

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- Definition

Area of land held.

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

Amount of lessee's undiscounted obligation for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

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

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

+ References

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- Definition

Amount of operating lease expense. Excludes sublease income.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 4
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479041/842-20-45-4

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Balance Type:	debit
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- Definition

Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

+ References

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Period Type:	duration

- Definition

Weighted average discount rate for operating lease calculated at point in time.

+ References

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-Topic 842
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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Period Type:	instant

- Definition

Minimum amount of purchase arrangement in which the entity has agreed to expend funds to procure goods or services from a supplier.

+ References

No definition available.

+ Details

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

- Details

Name:	us-gaap_LeaseContractualTermAxis=pke_AdditionalLeaseAgreementWithCityAndCountyForLandAtNewtonKansasAirportMember
Namespace Prefix:
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Balance Type:
Period Type:

- Details

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- Details

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Balance Type:
Period Type:

- Details

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Balance Type:
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Note 10 - Leases and Commitments (Details Textual) $ in Thousands	1 Months Ended	12 Months Ended
	Dec. 31, 2018 USD ($) a ft²	Feb. 26, 2023 USD ($)	Feb. 27, 2022 USD ($)	Feb. 28, 2021 USD ($)
Operating Lease, Expense		$ 62
Operating Lease, Payments		$ 53
Operating Lease, Weighted Average Remaining Lease Term (Year)		7 years 6 months 14 days
Operating Lease, Weighted Average Discount Rate, Percent		4.46%
Operating Lease, Expense, Including Real Estate Taxes and Other Costs		$ 242	$ 267	$ 328
Additional Lease Agreement with City and County for Land at Newton, Kansas Airport [Member]
Area of Land \| a	3
Lease Agreement with City and County for Land at Newton, Kansas Airport [Member]
Area of Land \| a	8
Additional Manufacturing Facility [Member]
Area of Land \| ft²	90,000
Construction in Progress Estimated Cost	$ 19,800
Purchase Obligation		99
Additional Lease Liability, Dependent on Committed Renewal Options [Member]
Lessee, Operating Lease, Liability, to be Paid, Year Two		$ 53
Minimum [Member]
Lessee, Operating Lease, Renewal Term (Year)		1 year
Maximum [Member]
Lessee, Operating Lease, Renewal Term (Year)		10 years