Inventories (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Inventory Disclosure [Abstract]
Raw materials	$ 1,294	$ 1,231
Finished goods	68,303	72,278
Inventory, gross	69,597	73,509
Excess and obsolete inventory reserves	(17,386)	(18,040)
Inventories, net	$ 52,211	$ 55,469