Inventories (Details) (USD $) In Thousands, unless otherwise specified	Feb. 28, 2014	Feb. 28, 2013
Schedule of Inventories
Inventory, Raw Materials, Gross	$ 1,878	$ 2,131
Inventory, Work-In-Process, Gross	3,103	3,339
Inventory, Finished Goods, Gross	1,782	750
Inventory, Gross, Total	6,763	6,220
Inventory Raw Material Reserve	(447)	(372)
Inventory Work-In-Process Reserve	(1,292)	(1,206)
Inventory Finished Goods Reserve	(708)	(609)
Inventory Adjustments, Total	(2,447)	(2,187)
Inventory, Raw material, Net	1,431	1,759
Inventory, Work in Process, Net	1,811	2,133
Inventory, Finished Goods, Net	1,074	141
Inventories, Net	$ 4,316	$ 4,033