XML 100 R83.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Income Taxes - Deferred Tax Assets By Location (Details) - USD ($) $ in Thousands | Apr. 29, 2017 | Apr. 30, 2016
--- | --- | ---
Deferred Tax Assets By Location [Line Items] |  |
Deferred tax assets, gross | $ 21,845 | $ 21,445
International |  |
Deferred Tax Assets By Location [Line Items] |  |
Deferred tax assets, gross | $ 1,772 |

X
- Definition [Line Items] for Deferred Tax Assets By Location [Table] + References No definition available. + Details
Name: | dakt_DeferredTaxAssetsByLocationLineItems
Namespace Prefix: | dakt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32537-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Deferred Tax Asset -URI http://asc.fasb.org/extlink&oid=6510090 + Details
Name: | us-gaap_DeferredTaxAssetsGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_IncomeTaxAuthorityAxis=us-gaap_ForeignCountryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |