Commitments and Contingencies (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Jun. 30, 2018 |
Jun. 30, 2017 |
Jun. 30, 2018 |
Jun. 30, 2017 |
Dec. 31, 2017 |
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| Commitments and Contingencies (Textual) | |||||
| Royalty expenses | $ 1,653 | $ 1,639 | $ 3,209 | $ 2,532 | |
| Deposits held by credit card processors | $ 3,400 | $ 3,400 | $ 2,800 | ||
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of expense related to royalty payments under a contractual arrangement such as payment for mineral and drilling rights and use of technology or intellectual property. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The amount of an asset, typically cash, provided to a counterparty to provide certain assurance of performance by the entity pursuant to the terms of a written or oral agreement, such as a lease. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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