[Line Items] for Accounting Policies [Table]

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- Definition

Fiscal Time Period

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- Definition

Number Of Businesses Which Changed Revenue Recognition Practices Due To New Accounting Pronouncement

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- Definition

Number Of Businesses Which Operate Under Long-Term, Fixed-Price Contracts

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Number Of Businesses Which Operate Under Long-Term, Fixed-Price Contracts, Percent Of Total Revenue

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- Definition

Number Of Businesses Which Recognize Revenue Following The Over-Time Output Method

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- Definition

Number Of Businesses Which Recognize Revenue Following The Over-Time Output Method, Percent Of Total Revenue

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No definition available.

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- Definition

Percentage Of Total Revenue

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No definition available.

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- Definition

Performance Period For Percentage Of Completion Contracts

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- Definition

Tax Cuts And Jobs Act Of 2017, Incomplete Accounting, Change In Tax Rate, Deferred Tax Asset, Provisional Income Tax Expense

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No definition available.

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- Definition

Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 720
-SubTopic 35
-Section 50
-Paragraph 1
-Subparagraph (b)
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- Definition

Amount of net periodic benefit cost (credit) for defined benefit plan.

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- Definition

Present value of lessee's discounted obligation for lease payments from operating lease.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
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- Definition

Amount of lessee's right to use underlying asset under operating lease.

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- Definition

The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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- Definition

The cumulative amount of the reporting entity's undistributed earnings or deficit.

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- Definition

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Summary of Significant Accounting Policies and Related Data (Details Textual) $ in Thousands		3 Months Ended	9 Months Ended	12 Months Ended
	Apr. 26, 2019 USD ($) shares	Jun. 02, 2018 USD ($)	Dec. 01, 2018 business	Feb. 29, 2020 USD ($)	Mar. 02, 2019 USD ($) business shares	Mar. 03, 2018 USD ($) shares	Mar. 04, 2017 USD ($) shares	Jun. 01, 2019 USD ($)
Accounting Policies [Line Items]
Fiscal time period					P52W	P52W	P53W
Fixed-price contracts, number of businesses \| business					3
Fixed-price contracts, percentage of total revenue			34.00%
Number of business which changed revenue recognition practices due to adoption \| business			1
Number of businesses \| business					1
Percentage of total revenue					22.00%
Research and development expense					$ 19,500	$ 14,000	$ 8,600
Share repurchases, shares \| shares					1,258,000	702,000	250,000
Retained earnings					$ 367,597	$ 373,259
Income tax effects						0
Net periodic benefit cost					692	718	$ 739
Scenario, Forecast
Accounting Policies [Line Items]
Net periodic benefit cost				$ 500
ASU 2017-07
Accounting Policies [Line Items]
Net periodic benefit cost					500
Difference between Revenue Guidance in Effect before and after Topic 606 \| ASU 2014-09
Accounting Policies [Line Items]
Retained earnings					3,000
Cost of Sales
Accounting Policies [Line Items]
Research and development expense					6,500	1,500	2,200
Selling, general and administrative expenses
Accounting Policies [Line Items]
Advertising expense					$ 1,500	$ 1,400	$ 1,100
Subsequent Event
Accounting Policies [Line Items]
Share repurchases, shares \| shares	437,671
Share repurchases, value	$ 16,200
Subsequent Event \| ASU 2016-02 \| Scenario, Forecast
Accounting Policies [Line Items]
Right-of-use asset								$ 50,000
Lease liability								$ 50,000
Minimum
Accounting Policies [Line Items]
Performance Period For Percentage Of Completion Contracts					12 months
Maximum
Accounting Policies [Line Items]
Performance Period For Percentage Of Completion Contracts					18 months
Recognized at shipment
Accounting Policies [Line Items]
Percentage of total revenue					44.00%
Accumulated Other Comprehensive (Loss) Income
Accounting Policies [Line Items]
Share repurchases, value					$ 0
Income tax effects					$ 737
Accumulated Other Comprehensive (Loss) Income \| New Accounting Pronouncement, Early Adoption, Effect \| ASU 2018-02
Accounting Policies [Line Items]
Income tax effects		$ (700)