Significant Accounting Policies - Additional Information (Details) - USD ($) |
3 Months Ended | ||
|---|---|---|---|
Mar. 31, 2019 |
Mar. 31, 2018 |
Jan. 01, 2019 |
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| Deferred revenue | $ 2,800,000 | ||
| Deferred revenue, recognized | $ 600,000 | ||
| Remaining service period to recognize deferred revenue, description | 2024 | ||
| Capitalized contract cost, net | $ 400,000 | 300,000 | |
| Laser revenue | 200,000 | $ 100,000 | |
| New accounting pronouncement or change in accumulated deficit | 21,000 | ||
| Operating lease right-of-use-assets | 3,084,000 | 3,200,000 | |
| Operating lease, liability | $ 3,153,000 | ||
| ASU 2016-02 [Member] | |||
| Operating lease right-of-use-assets | 3,200,000 | ||
| Operating lease, liability | $ 3,200,000 | ||
| Minimum [Member] | |||
| Extended warranty service contracts terms | 12 months | ||
| Maximum [Member] | |||
| Extended warranty service contracts terms | 60 months | ||
| Capitalized contract cost amortization period | 1 year | ||
| X | ||||||||||
- Definition Capitalized contract cost amortization period. No definition available.
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| X | ||||||||||
- Definition Extended warranty service contracts terms. No definition available.
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| X | ||||||||||
- Definition Revenue remaining service period to recognize the deferred revenue. No definition available.
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| X | ||||||||||
- Definition Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of cumulative effect of the change in accounting principle or new accounting pronouncement on retained earnings or other components of equity or net assets in the statement of financial position as of the beginning of the earliest period presented. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of lessee's right to use underlying asset under operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The total amount of revenue recognized for the period from operating leases, including minimum lease revenue, contingent revenue, percentage revenue and sublease revenue. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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