Business Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Details of net sales and income (loss) before income taxes by segment
Net sales	$ 110,084	$ 130,008	$ 228,865	$ 228,989
Income before income taxes	4,407	4,979	7,199	25,057
Gain on bargain purchase				22,009
Factory-built housing [Member]
Details of net sales and income (loss) before income taxes by segment
Net sales	98,903	119,686	207,350	212,526
Income before income taxes	3,504	4,726	6,971	2,578
Financial services [Member]
Details of net sales and income (loss) before income taxes by segment
Net sales	11,181	10,322	21,515	16,463
Income before income taxes	2,969	2,518	3,994	3,640
General corporate [Member]
Details of net sales and income (loss) before income taxes by segment
Income before income taxes	$ (2,066)	$ (2,265)	$ (3,766)	$ (3,170)