Earnings Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Earnings Per Share Computation
Net income attributable to Cavco common stockholders	$ 860	$ 10,222
Weighted average shares outstanding:
Basic	6,923,676	6,838,324
Common stock equivalents - treasury stock method	72,095	56,056
Diluted	6,995,771	6,894,380
Net income per share attributable to Cavco common stockholders:
Basic	$ 0.12	$ 1.49
Diluted	$ 0.12	$ 1.48