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Schedule of Reconciliation of Beginning and Ending Amount of Unrecognized Tax Benefits (Detail) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
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Mar. 31, 2015
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Mar. 31, 2013
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Mar. 31, 2012
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| Income Tax Disclosure [Abstract] | |||
| Balance at April 1 | $ 61us-gaap_UnrecognizedTaxBenefits | $ 61us-gaap_UnrecognizedTaxBenefits | $ 61us-gaap_UnrecognizedTaxBenefits |
| Additions for tax position of prior years | 844us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions | ||
| Balance at March 31 | $ 905us-gaap_UnrecognizedTaxBenefits | $ 61us-gaap_UnrecognizedTaxBenefits | $ 61us-gaap_UnrecognizedTaxBenefits |
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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