Summary of Opening and Closing Balances of Contract Liabilities (Detail) - USD ($) $ in Thousands |
Dec. 31, 2020 |
Dec. 31, 2019 |
|---|---|---|
| Revenue Recognition [Abstract] | ||
| Undelivered elements (training, installation, product and support services) | $ 670 | $ 559 |
| Extended warranty contracts | 1,609 | 2,063 |
| Total deferred revenue | 2,279 | 2,622 |
| Less: long-term portion of deferred revenue | 374 | 385 |
| Deferred revenue – current | $ 1,905 | $ 2,237 |
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- Definition Contract with customer liability in extended warranty contracts. No definition available.
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- Definition Contract with customer liability in undelivered elements. No definition available.
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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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