XML 107 R90.htm IDEA: XBRL DOCUMENT v3.7.0.1

Derivative Financial Instruments - (Details) € in Thousands, £ in Thousands, SGD in Thousands, CAD in Thousands, AUD in Thousands, $ in Thousands	Apr. 29, 2017 USD ($)	Apr. 29, 2017 CAD	Apr. 29, 2017 EUR (€)	Apr. 29, 2017 AUD	Apr. 29, 2017 SGD	Apr. 29, 2017 GBP (£)	Apr. 30, 2016 USD ($)	Apr. 30, 2016 CAD	Apr. 30, 2016 EUR (€)	Apr. 30, 2016 AUD	Apr. 30, 2016 SGD	Apr. 30, 2016 GBP (£)
Recurring Basis
Derivative
Foreign currency contract, asset	$ 64
Foreign currency contract, liability	(277)						$ (453)
Recurring Basis | Level 2
Derivative
Foreign currency contract, asset	64
Foreign currency contract, liability	(277)						(453)
U.S. Dollars/Australian Dollars | Not Designated as Hedging Instrument [Member]
Derivative
Foreign Currency Exchange Forward Contracts:	7,984			AUD 10,669			7,216			AUD 10,027
U.S. Dollars/Canadian Dollars | Not Designated as Hedging Instrument [Member]
Derivative
Foreign Currency Exchange Forward Contracts:	256	CAD 345					563	CAD 771
U.S. Dollars/British Pounds | Not Designated as Hedging Instrument [Member]
Derivative
Foreign Currency Exchange Forward Contracts:	4,936					£ 3,959	1,795					£ 1,263
U.S. Dollars/Singapore Dollars | Not Designated as Hedging Instrument [Member]
Derivative
Foreign Currency Exchange Forward Contracts:	605				SGD 844		261				SGD 356
U.S. Dollars/Euros | Not Designated as Hedging Instrument [Member]
Derivative
Foreign Currency Exchange Forward Contracts:	$ 528		€ 491				$ 147		€ 132

X

- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

+ Details

Name:	invest_DerivativeNotionalAmount
Namespace Prefix:	invest_
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

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

X

- Definition

Fair value portion of asset contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward contracts, and swaps.

+ References

No definition available.

+ Details

Name:	us-gaap_ForeignCurrencyContractAssetFairValueDisclosure
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Fair value portion of liability contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into.

+ References

No definition available.

+ Details

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

X

- Details

Name:	us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

Name:	us-gaap_HedgingDesignationAxis=us-gaap_NondesignatedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

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

X

- Details

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

X

- Details

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