Reconciliation of Basic Earnings (Loss) Per Share to Diluted Earnings (Loss) Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Feb. 29, 2016	Nov. 30, 2015	Aug. 31, 2015	May. 31, 2015	Feb. 28, 2015	Nov. 30, 2014	Aug. 31, 2014	May. 31, 2014	Feb. 29, 2016	Feb. 28, 2015
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net Income (Loss), Basic-continuing operations									$ (6,674)	$ (6,037)
Net Income (Loss), Basic-discontinued operations									528	44
Net Income (Loss), Diluted earnings per share									$ (6,146)	$ (5,993)
Average Shares Outstanding, Basic									5,909	6,384
Average Shares Outstanding, Diluted earnings per share									5,910	6,393
Net Income (Loss) Per Share, Basic-continuing operations	$ (0.19)	$ (0.36)	$ (0.23)	$ (0.26)	$ (0.54)	$ (0.45)	$ 0.02	$ 0.02	$ (1.13)	$ (0.95)
Net Income (Loss) Per Share, Basic-discontinued operations									0.09	0.01
Net Income (Loss) Per Share, Effect of dilution options									0.00	0.00
Net Income (Loss) Per Share, Diluted earnings per share	$ (0.19)	$ (0.36)	$ (0.23)	$ (0.26)	$ (0.54)	$ (0.45)	$ 0.02	$ 0.02	$ (1.04)	$ (0.94)
Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Average Shares Outstanding, Options									1	9
Continuing Operations
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Average Shares Outstanding, Basic									5,909	6,384
Discontinued Operations
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Average Shares Outstanding, Basic									5,909	6,384