| Summary of Future Minimum Payments Under Initial Terms of Leases (Detail) (USD $) In Thousands, unless otherwise specified | Jun. 30, 2014 | 
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| Operating Leased Assets [Line Items] | |
| 2015 | $ 415 | 
| 2016 | 113 | 
| Total minimum lease payments | $ 528 | 
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- Details 
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- Definition Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount of required minimum rental payments maturing in the next fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount of required minimum rental payments maturing in the second fiscal year following the latest fiscal year for operating leases having an initial or remaining non-cancelable letter-terms in excess of one year. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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