XML 68 R51.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Segment Reporting - Net Sales and Long-lived Assets by Geographic Area (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Apr. 29, 2017 | Apr. 30, 2016 | May 02, 2015
Net sales: |  |  |
Net sales | $ 586,539 | $ 570,168 | $ 615,942
Long-lived assets: |  |  |
Long-lived assets | 66,749 | 73,163 | 72,844
United States |  |  |
Net sales: |  |  |
Net sales | 479,846 | 465,598 | 494,860
Long-lived assets: |  |  |
Long-lived assets | 62,425 | 68,233 | 67,882
Outside U.S. |  |  |
Net sales: |  |  |
Net sales | 106,693 | 104,570 | 121,082
Long-lived assets: |  |  |
Long-lived assets | $ 4,324 | $ 4,930 | $ 4,962

X
- References No definition available. + Details
Name: | us-gaap_GeographicAreasLongLivedAssetsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_GeographicAreasRevenuesFromExternalCustomersAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9038-108599 + Details
Name: | us-gaap_NoncurrentAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
Name: | us-gaap_Revenues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=dakt_OutsideUnitedStatesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |