Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Balance Type:	na
Period Type:	duration

Note 9 - Common Stock Repurchases (Details Textual) - USD ($) shares in Millions, $ in Millions	9 Months Ended	112 Months Ended
	Jan. 01, 2017	Jan. 01, 2017	Jul. 09, 2013	Aug. 28, 2007
Stock Repurchased During Period, Shares	11.1
Stock, Repurchased and Retired, Balance Value		$ 105.2
August 2007 Repurchase Plan [Member]
Stock Repurchase Program, Authorized Amount				$ 100.0
July 2013 Repurchase Program [Member]
Stock Repurchase Program, Authorized Amount			$ 50.0