Note 13 - Stock Plans (Detail) - Grants Made in Accordance with the Terms of the Executive Team Incentive Plan (USD $)			1 Months Ended
	Feb. 02, 2013	Sep. 30, 2008	Nov. 30, 2012 Executive Team Incentive Plan [Member]	Aug. 31, 2012 Executive Team Incentive Plan [Member]	May 31, 2012 Executive Team Incentive Plan [Member]	Feb. 29, 2012 Executive Team Incentive Plan [Member]	Nov. 30, 2011 Executive Team Incentive Plan [Member]	Aug. 31, 2011 Executive Team Incentive Plan [Member]	May 31, 2011 Executive Team Incentive Plan [Member]	Feb. 28, 2011 Executive Team Incentive Plan [Member]
2012
Restricted Shares			1,854	1,277	773	597	3,244	4,483	2,798	3,262
Number of Shares Under Options			7,522	3,514	1,764	1,201	6,342	22,247	13,225	10,988
Grant Price (in Dollars per share)	$ 4.98	$ 12.13	$ 2.88	$ 4.18	$ 6.91	$ 8.94	$ 9.03	$ 12.11	$ 12.52	$ 12.20