Consolidated Statements of Comprehensive Income (Unaudited) (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
Consolidated Statements of Comprehensive Income [Abstract]
Net sales	$ 110,084	$ 130,008	$ 228,865	$ 228,989
Cost of sales	84,377	101,780	179,103	184,601
Gross profit	25,707	28,228	49,762	44,388
Selling, general and administrative expenses	20,118	21,588	40,093	38,578
Income from operations	5,589	6,640	9,669	5,810
Interest expense	(1,570)	(1,916)	(3,253)	(3,377)
Other income	388	255	783	615
Gain on bargain purchase				22,009
Income before income taxes	4,407	4,979	7,199	25,057
Income tax expense	(1,726)	(1,807)	(2,900)	(1,197)
Net income	2,681	3,172	4,299	23,860
Less: net income attributable to redeemable noncontrolling interest	1,427	1,487	2,185	11,953
Net income attributable to Cavco common stockholders	1,254	1,685	2,114	11,907
Comprehensive income:
Net income	2,681	3,172	4,299	23,860
Unrealized gain (loss) on available-for-sale securities, net of tax	88	(218)	62	(282)
Comprehensive income	2,769	2,954	4,361	23,578
Comprehensive income attributable to redeemable noncontrolling interest	1,471	1,378	2,216	11,812
Comprehensive income attributable to Cavco common stockholders	$ 1,298	$ 1,576	$ 2,145	$ 11,766
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
Weighted average shares outstanding:
Basic	6,967,954	6,890,122	6,945,815	6,864,427
Diluted	7,041,755	6,937,807	7,006,322	6,921,458