Earnings Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Earnings Per Share Computation
Net income attributable to Cavco common stockholders	$ 1,254	$ 1,685	$ 2,114	$ 11,907
Weighted average shares outstanding:
Basic	6,967,954	6,890,122	6,945,815	6,864,427
Common stock equivalents - treasury stock method	73,801	47,685	60,507	57,031
Diluted	7,041,755	6,937,807	7,006,322	6,921,458
Net income per share attributable to Cavco common stockholders:
Basic	$ 0.18	$ 0.24	$ 0.30	$ 1.73
Diluted	$ 0.18	$ 0.24	$ 0.30	$ 1.72