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Share Repurchase Program (Notes)	9 Months Ended
	Jan. 27, 2018
Class of Stock Disclosures [Abstract]
Treasury Stock [Text Block]	Note 3. Share Repurchase Program On June 17, 2016, our Board of Directors approved a stock repurchase program under which Daktronics, Inc. may purchase up to $40,000 of its outstanding shares of common stock. Under this program, we may repurchase shares from time to time in open market transactions and in privately negotiated transactions based on business, market, applicable legal requirements and other considerations. The repurchase program does not require the repurchase of a specific number of shares and may be terminated at any time. During the first, second and third quarter of fiscal 2018, we had no repurchases of shares of our outstanding common stock. During the first quarter of fiscal 2017, we repurchased 284 shares of common stock at a total cost of $1,825, and there were no other purchases during fiscal 2017. As of January 27, 2018, we had $38,175 of remaining capacity under our current share repurchase program.

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- Definition

The entire disclosure for treasury stock, including, but not limited to, average cost per share, description of share repurchase program, shares repurchased, shares held for each class of treasury stock.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-URI http://asc.fasb.org/subtopic&trid=2208821

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