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Income Taxes - Schedule of Reconciliation of Statutory Federal Income Tax Rate to Effective Income Tax Rate (Detail)	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Income Tax Disclosure [Abstract]
Statutory federal income tax rate	(34.00%)	(34.00%)	(34.00%)
State income taxes, net of federal benefit	1.00%	2.00%
Deemed dividend and dividends paid	5.00%	1.00%	1.00%
Foreign income tax rate differential	5.00%	6.00%	(6.00%)
Stock options	1.00%	1.00%	2.00%
Nondeductible expenses		1.00%	1.00%
Research and development tax credit	(5.00%)
Deferred warrants		(3.00%)	(1.00%)
Interest expense			5.00%
Extinguishment of debt			3.00%
Reversal of uncertain tax benefits		(6.00%)
True-up of foreign NOLs	19.00%
Settlement of intercompany balances	(9.00%)
Nondeductible foreign currency exchange remeasurement loss	10.00%
Valuation allowance	18.00%	32.00%	30.00%
Effective income tax rate	11.00%		1.00%

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to deduction for dividend.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible expenses.

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