| Contingent Liabilities (Parenthetical) (Detail) (USD $) In Thousands, unless otherwise specified | Jun. 30, 2014 | Mar. 31, 2014 | 
|---|---|---|
| Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] | ||
| Contingent liability, discount | $ 0 | $ 762 | 
| X | ||||||||||
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- Definition The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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| X | ||||||||||
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- Details 
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