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Income Taxes - Schedule of Components of Income Tax Expense (Benefit) Attributable to Continuing Operations (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Income Taxes [Abstract]
Current, Federal	$ 47us-gaap_CurrentFederalTaxExpenseBenefit	$ 287us-gaap_CurrentFederalTaxExpenseBenefit	$ 94us-gaap_CurrentFederalTaxExpenseBenefit
Current, Foreign	(274)us-gaap_CurrentForeignTaxExpenseBenefit	614us-gaap_CurrentForeignTaxExpenseBenefit	(438)us-gaap_CurrentForeignTaxExpenseBenefit
Total current	(227)us-gaap_CurrentIncomeTaxExpenseBenefit	901us-gaap_CurrentIncomeTaxExpenseBenefit	(344)us-gaap_CurrentIncomeTaxExpenseBenefit
Deferred, Federal	43	(49)	93
Deferred, Foreign			(13)
Total deferred	43us-gaap_DeferredIncomeTaxExpenseBenefit	(49)us-gaap_DeferredIncomeTaxExpenseBenefit	80us-gaap_DeferredIncomeTaxExpenseBenefit
Income tax (benefit) expense	$ (184)us-gaap_IncomeTaxExpenseBenefit	$ 852us-gaap_IncomeTaxExpenseBenefit	$ (264)us-gaap_IncomeTaxExpenseBenefit

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.

Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.