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The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

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Amount of income (loss) from continuing operations attributable to the parent. Also defined as revenue less expenses and taxes from ongoing operations before extraordinary items but after deduction of those portions of income or loss from continuing operations that are allocable to noncontrolling interests.

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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, 2015	Nov. 30, 2014	Aug. 31, 2014	May 31, 2014	Feb. 28, 2014	Nov. 30, 2013	Aug. 31, 2013	May 31, 2013	Feb. 28, 2015	Feb. 28, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Net Income (Loss), Basic-continuing operations									$ (6,037)	$ (5,460)
Net Income (Loss), Basic-discontinued operations									44	2,779
Net Income (Loss), Diluted earnings per share									$ (5,993)	$ (2,681)
Average Shares Outstanding, Basic									6,384	7,557
Average Shares Outstanding, Diluted earnings per share									6,393	7,582
Net Income (Loss) Per Share, Basic-continuing operations	$ (0.54)us-gaap_EarningsPerShareBasic	$ (0.45)us-gaap_EarningsPerShareBasic	$ 0.02us-gaap_EarningsPerShareBasic	$ 0.02us-gaap_EarningsPerShareBasic	$ (0.47)us-gaap_EarningsPerShareBasic	$ (0.09)us-gaap_EarningsPerShareBasic	$ (0.11)us-gaap_EarningsPerShareBasic	$ (0.06)us-gaap_EarningsPerShareBasic	$ (0.95)us-gaap_EarningsPerShareBasic	$ (0.72)us-gaap_EarningsPerShareBasic
Net Income (Loss) Per Share, Basic-discontinued operations									$ 0.01	$ 0.37
Net Income (Loss) Per Share, Effect of dilution options									$ 0.00	$ 0.00
Net Income (Loss) Per Share, Diluted earnings per share	$ (0.54)us-gaap_EarningsPerShareDiluted	$ (0.45)us-gaap_EarningsPerShareDiluted	$ 0.02us-gaap_EarningsPerShareDiluted	$ 0.02us-gaap_EarningsPerShareDiluted	$ (0.47)us-gaap_EarningsPerShareDiluted	$ (0.09)us-gaap_EarningsPerShareDiluted	$ (0.11)us-gaap_EarningsPerShareDiluted	$ (0.06)us-gaap_EarningsPerShareDiluted	$ (0.94)us-gaap_EarningsPerShareDiluted	$ (0.35)us-gaap_EarningsPerShareDiluted
Continuing Operations
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Average Shares Outstanding, Basic									6,384	7,557
Discontinued Operations
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Average Shares Outstanding, Basic									6,384	7,557
Stock Options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Average Shares Outstanding, Options									9	25