Income Taxes - Additional Information (Detail) - USD ($) |
12 Months Ended | ||
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Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
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| Income Taxes [Line Items] | |||
| State and Canadian net operating losses (NOLs) | $ 15,400,000 | $ 14,000,000.0 | |
| State and Canadian net operating losses (NOLs), expiration year | 2033 | ||
| Valuation allowance, deferred tax assets | $ 4,418,000 | 3,921,000 | |
| Change in valuation allowance, deferred tax assets | 497,000 | 1,400,000 | $ 677,000 |
| Decrease in unrecognized tax benefits that is reasonably possible | 55,000 | ||
| Unrecognized tax benefits related to penalties | $ 13,000 | 136,000 | |
| Income Tax Examination, Description | The Company is not currently under income tax examination by any taxing authority. | ||
| Undistributed earnings of foreign subsidiary | $ 0 | $ 0 | |
| Minimum [Member] | |||
| Income Taxes [Line Items] | |||
| Open tax years subject to tax examinations | 2016 | ||
| Maximum [Member] | |||
| Income Taxes [Line Items] | |||
| Open tax years subject to tax examinations | 2020 | ||
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- Definition Income Taxes [Line Items] No definition available.
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- Definition Operating Loss Carryforwards Expiration Year. No definition available.
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- Definition Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition A brief description of status of the tax examination, significant findings to date, and the entity's position with respect to the findings. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Tax year that remains open to examination under enacted tax laws, in CCYY format. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of undistributed earnings of foreign subsidiaries intended to be permanently reinvested outside the country of domicile. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of expense for penalties related to a tax position claimed or expected to be claimed in the tax return. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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- Details
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