Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2017	Oct. 01, 2016	Sep. 30, 2017	Oct. 01, 2016
Earnings Per Share Computation
Net income attributable to Cavco common stockholders	$ 6,182	$ 9,341	$ 17,935	$ 14,784
Weighted average shares outstanding:
Basic (in shares)	9,020,834	8,980,303	9,013,917	8,958,784
Common stock equivalents - treasury stock method (in shares)	161,065	120,530	157,598	133,869
Diluted (in shares)	9,181,899	9,100,833	9,171,515	9,092,653
Net income per share attributable to Cavco common stockholders:
Basic (usd per share)	$ 0.69	$ 1.04	$ 1.99	$ 1.65
Diluted (usd per share)	$ 0.67	$ 1.03	$ 1.96	$ 1.63
Anti-dilutive stock equivalents excluded from computation	4,867	4,155	8,432	7,941