Annual report pursuant to Section 13 and 15(d)

Contingent Liabilities (Detail)

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Contingent Liabilities (Detail) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Apr. 28, 2014
Mar. 31, 2014
Long Term Contingent Liability      
Contingent liability, net of discount $ 0us-gaap_BusinessCombinationContingentConsiderationLiability $ 60us-gaap_BusinessCombinationContingentConsiderationLiability $ 238us-gaap_BusinessCombinationContingentConsiderationLiability