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Derivative Financial Instruments - Schedule of Notional Amounts of Outstanding Derivative Positions (Details) € in Thousands, $ in Thousands	Apr. 27, 2024 USD ($)	Apr. 27, 2024 EUR (€)	Apr. 29, 2023 USD ($)	Apr. 29, 2023 EUR (€)
United States Dollars/Euros
Derivatives, Fair Value [Line Items]
Derivative, notional amount	$ 0	€ 0	$ 7,758	€ 7,513

X

- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-1B

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1A
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-1A

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=dakt_USDollarsEurosMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: