Stockholders' Equity (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Changes in Stockholders' Equity Attributable to Cavco Stockholders
Beginning Balance, Common Stock, Value	$ 69
Beginning Balance, Common Stock, Shares	6,890,796
Beginning Balance, Additional Paid-in Capital	131,589
Beginning Balance, Retained Earnings	36,627
Beginning Balance, Accumulated Other Comprehensive Income	58
Beginning Balance	168,343
Stock option exercises, Value	2,161
Share-based compensation	270
Net income	860	10,222
Other comprehensive loss	(13)
Ending Balance, Common Stock, Value	70
Ending Balance, Common Stock, Shares	6,966,454
Ending Balance, Additional Paid-in Capital	134,019
Ending Balance, Retained Earnings	37,487
Ending Balance, Accumulated Other Comprehensive Income	45
Ending Balance	171,621
Common Stock [Member]
Changes in Stockholders' Equity Attributable to Cavco Stockholders
Beginning Balance, Common Stock, Value	69
Beginning Balance, Common Stock, Shares	6,890,796
Stock option exercises, Value	1
Stock option exercises, Shares	75,658
Ending Balance, Common Stock, Value	70
Ending Balance, Common Stock, Shares	6,966,454
Additional Paid-in Capital [Member]
Changes in Stockholders' Equity Attributable to Cavco Stockholders
Beginning Balance, Additional Paid-in Capital	131,589
Stock option exercises, Value	2,160
Share-based compensation	270
Ending Balance, Additional Paid-in Capital	134,019
Retained Earnings [Member]
Changes in Stockholders' Equity Attributable to Cavco Stockholders
Beginning Balance, Retained Earnings	36,627
Net income	860
Ending Balance, Retained Earnings	37,487
Accumulated Other Comprehensive Income [Member]
Changes in Stockholders' Equity Attributable to Cavco Stockholders
Beginning Balance, Accumulated Other Comprehensive Income	58
Other comprehensive loss	(13)
Ending Balance, Accumulated Other Comprehensive Income	$ 58