Reconciliation of Basic Earnings (loss) Per Share to Diluted Earnings (loss) Per Share (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Feb. 28, 2014	Nov. 30, 2013	Aug. 31, 2013	May 31, 2013	Feb. 28, 2013	Nov. 30, 2012	Aug. 31, 2012	May 31, 2012	Feb. 28, 2014	Feb. 28, 2013
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net Income, Basic-continuing operations									$ (5,460)	$ (2,482)
Net Income, Basic-discontinued operations									2,779	2,490
Net Income, Diluted earnings per share									$ (2,681)	$ 8
Average Shares Outstanding, Basic									7,557	7,570
Average Shares Outstanding, Diluted earnings per share									7,582	7,623
Net Income Per Share, Basic-continuing operations	$ (0.47)	$ (0.09)	$ (0.11)	$ (0.06)	$ (0.07)	$ (0.09)	$ (0.09)	$ (0.08)	$ (0.72)	$ (0.33)
Net Income Per Share, Basic-discontinued operations									$ 0.37	$ 0.33
Net Income Per Share, Diluted earnings per share	$ (0.47)	$ (0.09)	$ (0.11)	$ (0.06)	$ (0.07)	$ (0.09)	$ (0.09)	$ (0.08)	$ (0.35)	$ 0.00
Continuing Operations
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Average Shares Outstanding, Basic									7,557	7,570
Discontinued Operations
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Average Shares Outstanding, Basic									7,557	7,570
Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Average Shares Outstanding, Options									25	53
Effect of dilution options, Net Income Per Share									$ 0.00	$ 0.00