Note 4 - Inventories (Details) - Inventories (USD $) In Thousands, unless otherwise specified	Sep. 01, 2013	Mar. 03, 2013
Inventories [Abstract]
Raw materials	$ 6,733	$ 6,639
Work-in-process	3,184	2,870
Finished goods	4,102	3,213
Manufacturing supplies	280	196
	$ 14,299	$ 12,918	[1]

[1] The balance sheet at March 3, 2013 has been derived from the audited financial statements at that date.