INVENTORY

12 Months Ended

Mar. 31, 2011

INVENTORY

INVENTORY

7.     INVENTORY

Inventory balances by category are as follows:

	March 31,				October 31,
	2011		2010		2009
Finished products	$	21,541	$	21,155	$	20,288
Parts and supplies		3,037		3,324		6,399
Inventory	$	24,578	$	24,479	$	26,687

Estimated product returns included in inventory at March 31, 2011 and 2010 and October 31, 2009 were $1,183, $2,394 and $2,971, respectively.