Inventories (Details) (USD $)	Dec. 28, 2013	Dec. 29, 2012
Inventory Disclosure [Abstract]
Raw materials	$ 7,118,000	$ 5,089,000
Work in progress	505,000	236,000
Finished goods	32,529,000	30,239,000
Inventories	40,152,000	35,564,000
Components of finished goods inventory [Abstract]
Finished beds included in finished goods inventory	13,400,000	12,600,000
Finished components included in finished goods inventory	11,300,000	10,800,000
Retail accessories included in finished goods inventory	$ 7,800,000	$ 6,800,000