Document and Entity Information	6 Months Ended
	Sep. 30, 2012	Nov. 06, 2012
Document and Entity Information [Abstract]
Entity Registrant Name	CAVCO INDUSTRIES INC
Entity Central Index Key	0000278166
Document Type	10-Q
Document Period End Date	Sep. 30, 2012
Amendment Flag	false
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--03-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		6,967,954