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Commitment and Contingencies - Additional Information (Details) $ in Thousands |  | 3 Months Ended | 6 Months Ended | 39 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Aug. 15, 2018 USD ($) | Jun. 30, 2019 USD ($) | Jun. 30, 2018 USD ($) | Jun. 30, 2019 USD ($) | Jun. 30, 2018 USD ($) | Mar. 31, 2018 USD ($) HairDryer | Dec. 31, 2018 USD ($) | May 31, 2018 Consumer
Commitment And Contingencies [Line Items] |  |  |  |  |  |  |  |
NET REVENUE |  | $ 30,368 | $ 14,588 | $ 48,213 | $ 28,904 | $ 6,200 |  |
Type of Revenue [Extensible List] |  |  |  |  |  | mwk:XtavaAllureHairDryerMember |  |
Remaining recall liability |  | 1,495 |  | 1,495 |  |  | $ 1,512 |
Xtava Allure Hair Dryer |  |  |  |  |  |  |  |
Commitment And Contingencies [Line Items] |  |  |  |  |  |  |  |
Number of Product sold | HairDryer |  |  |  |  |  | 170,000 |  |
Recall costs | $ 1,600 |  |  |  |  |  |  |
Legal and other expenses | $ 400 |  |  |  |  |  |  |
Legal matter yet to settle, remaining number of consumers | Consumer |  |  |  |  |  |  |  | 1
Remaining recall liability |  | $ 1,500 |  | $ 1,500 |  |  |  |

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