Basic and Diluted Earnings (Loss) Per Share - Schedule of Computation of Basic and Diluted Earnings (Loss) Per Share (Detail) (USD $)	12 Months Ended
Mar. 31, 2014	Mar. 31, 2013	Mar. 31, 2012
Numerator for basic and diluted earnings (loss) per share:
Income (Loss) from continuing operations	$ (5,116,577)	$ 517,804	$ (178,661)
Income (Loss) from continuing operations attributable to non-controlling interests	108,044	107,958	(6,659)
Income (Loss) from continuing operations attributable to shareholders of Global-Tech Advanced Innovations Inc.	(5,008,533)	625,762	(185,320)
Income (Loss) from continuing operations attributable to shareholders of Global-Tech Advanced Innovations Inc.	(5,008,533)	625,762	(185,320)
Income (Loss) from discontinued operations	(5,547,024)	(2,589,063)	1,595,997
Net income (loss) attributable to shareholders of Global-Tech Advanced Innovations Inc.	$ (10,555,557)	$ (1,963,301)	$ 1,410,677
Denominator for basic and diluted earnings (loss) per share:
Weighted average number of shares of common stock	3,041,625	3,040,310	3,039,727
Basic and diluted earnings (loss) per share:
Earnings (Loss) from continuing operations	$ (1.65)	$ 0.21	$ (0.06)
Earnings (Loss) from discontinued operations	$ (1.82)	$ (0.86)	$ 0.52
Earnings (Loss) attributable to common stockholders	$ (3.47)	$ (0.65)	$ 0.46

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The amount of net income or loss for the period per each share in instances when basic and diluted earnings per share are the same amount and reported as a single line item on the face of the financial statements. Basic earnings per share is the amount of net income or loss for the period per each share of common stock or unit outstanding during the reporting period. Diluted earnings per share includes the amount of net income or 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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This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses and taxes from ongoing operations before extraordinary items, and noncontrolling interest.

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The amount of net income (loss) from continuing operations per each basic and diluted share of common stock or unit when the per share amount is the same for both basic and diluted shares.

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Amount of income (loss) from a disposal group, net of income tax, reported as a separate component of income before extraordinary items after deduction or consideration of the amount allocable to noncontrolling interests. Includes, net of tax, income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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Per basic and diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation, when the per share amount is the same.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Amount of Net Income (Loss) attributable to noncontrolling interest.

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Average number of shares or units issued and outstanding that are used in calculating basic and diluted earnings per share (EPS).

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