Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | ||
---|---|---|---|---|
Dec. 31, 2017 |
Dec. 31, 2017 |
Dec. 31, 2016 |
Dec. 31, 2015 |
|
Summary Of Significant Accounting Policies [Line Items] | ||||
Maturity of temporary cash investments | 3 months | |||
Goodwill impairment charges | $ 10,700 | $ 10,702 | ||
Impairment of intangible assets | 10,500 | |||
Warranty and product liability | $ 400 | 400 | $ 400 | |
Revenue from sales taxes | 4,100 | 5,200 | $ 4,500 | |
Advertisement Expenses | $ 300 | 200 | 300 | |
Minimum | ||||
Summary Of Significant Accounting Policies [Line Items] | ||||
Product warranty period | 1 year | |||
Maximum | ||||
Summary Of Significant Accounting Policies [Line Items] | ||||
Product warranty period | 10 years | |||
Selling, General and Administrative Expenses | ||||
Summary Of Significant Accounting Policies [Line Items] | ||||
Warranty expense | $ 200 | $ 200 | $ 200 |
X | ||||||||||
- Definition Product warranty liabilities. No definition available.
|
X | ||||||||||
- Definition Product warranty period. No definition available.
|
X | ||||||||||
- Definition Summary of significant accounting policies. No definition available.
|
X | ||||||||||
- Definition Temporary cash investments maximum maturity period. No definition available.
|
X | ||||||||||
- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition The amount of excise and sales taxes included in sales and revenues, which are then deducted as a cost of sales. Includes excise taxes, which are applied to specific types of transactions or items (such as gasoline or alcohol); and sales, use and value added taxes, which are applied to a broad class of revenue-producing transactions involving a wide range of goods and services. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition The amount of impairment loss recognized in the period resulting from the write-down of the carrying amount of an intangible asset (excluding goodwill) to fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Definition The expense charged against earnings for the period pertaining to standard and extended warranties on the entity's goods and services granted to customers. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
X | ||||||||||
- Details
|
X | ||||||||||
- Details
|
X | ||||||||||
- Details
|