XML 59 R47.htm IDEA: XBRL DOCUMENT v3.21.2

Note 11 - Subsequent Events (Details Textual)	Nov. 19, 2021 $ / shares
Subsequent Event [Member] | Preferred Share Purchase Right [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)	$ 20.00

X

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21475-112644

+ Details

Name:	us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_ClassOfWarrantOrRightAxis=dakt_PreferredSharePurchaseRightMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: