Accrued Liabilities and Deferred Revenue - Additional Information (Detail) - USD ($) |
6 Months Ended | |
|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
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| Payables And Accruals [Abstract] | ||
| Deferred revenue recognized | $ 132,000 | $ 94,000 |
| X | ||||||||||
- Definition Amount of deferred revenue recognized for transactions arising during the current reporting period. Deferred revenue is a liability as of the balance sheet date related to a revenue producing activity for which revenue has not yet been recognized. Generally, an Entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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