Inventories (Details) (USD $) In Thousands, unless otherwise specified	May 31, 2014	Feb. 28, 2014
Schedule of Inventories
Inventory, Raw Materials, Gross	$ 1,902	$ 1,878
Inventory, Work-In-Process, Gross	3,473	3,103
Inventory, Finished Goods, Gross	1,363	1,782
Inventory, Gross, Total	6,738	6,763
Inventory Raw Material Reserve	(447)	(447)
Inventory Work-In-Process Reserve	(1,292)	(1,292)
Inventory Finished Goods Reserve	(682)	(708)
Inventories, Reserve, Total	(2,421)	(2,447)
Inventory, Raw material, Net	1,455	1,431
Inventory, Work in Process, Net	2,181	1,811
Inventory, Finished Goods, Net	681	1,074
Inventories, Net, Total	$ 4,317	$ 4,316