XML 46 R69.htm IDEA: XBRL DOCUMENT
v2.4.0.6

Employee Benefit Plans - (Details) (USD $) In Thousands, unless otherwise specified | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 29, 2011 | Apr. 27, 2013 | Apr. 28, 2012 | Apr. 30, 2011
Compensation and Retirement Disclosure [Abstract] |  |  |  |
Percentage of matching contribution | 50.00% | 25.00% |  |
Maximum annual contribution percentage |  | 6.00% |  |
Award requisite service period |  | 1 year |  |
Minimum age attained for award |  | 21 years |  |
Minimum hours worked |  | 1000 hours |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |
Contributions |  | $ 1,713 | $ 1,618 | $ 905
Officers and Former Director |  |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |  |
Contributions |  | 23 | 23 | 22
Contribution plan, accrued interest |  | $ 629 | $ 625 |
Lump sum distribution period, option one |  | 5 years |  |
Lump sum distribution period, option two |  | 10 years |  |

X
- Definition Defined Contribution Plan, Accrued Interest + References No definition available. + Details
Name: | dakt_DefinedContributionPlanAccruedInterest
Namespace Prefix: | dakt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Defined Contribution Plan, Attained Age + References No definition available. + Details
Name: | dakt_DefinedContributionPlanAttainedAge
Namespace Prefix: | dakt_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Defined Contribution Plan, Award Requisite Service Period + References No definition available. + Details
Name: | dakt_DefinedContributionPlanAwardRequisiteServicePeriod
Namespace Prefix: | dakt_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Defined Contribution Plan, Distribution Period One + References No definition available. + Details
Name: | dakt_DefinedContributionPlanDistributionPeriodOne
Namespace Prefix: | dakt_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Defined Contribution Plan, Distribution Period Two + References No definition available. + Details
Name: | dakt_DefinedContributionPlanDistributionPeriodTwo
Namespace Prefix: | dakt_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Defined Contribution Plan, Hours Worked + References No definition available. + Details
Name: | dakt_DefinedContributionPlanHoursWorked
Namespace Prefix: | dakt_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_CompensationAndRetirementDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of the cost recognized during the period for defined contribution plans. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 132R -Paragraph 11 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
Name: | us-gaap_DefinedContributionPlanCostRecognized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum percentage of employee gross pay, by the terms of the plan, that the employer may contribute to a defined contribution plan. + References No definition available. + Details
Name: | us-gaap_DefinedContributionPlanMaximumAnnualContributionPerEmployeePercent
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration