Annual report pursuant to Section 13 and 15(d)

Debt - Long-term Capital Lease Obligations Outstanding (Detail)

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Debt - Long-term Capital Lease Obligations Outstanding (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Mar. 31, 2014
Debt Disclosure [Abstract]    
Capital lease obligations (Note 6) $ 158us-gaap_CapitalLeaseObligations $ 216us-gaap_CapitalLeaseObligations
Less: current amounts 60us-gaap_CapitalLeaseObligationsCurrent 80us-gaap_CapitalLeaseObligationsCurrent
Total $ 98us-gaap_CapitalLeaseObligationsNoncurrent $ 136us-gaap_CapitalLeaseObligationsNoncurrent