Revenue from contracts with customers (Details) - USD ($) $ in Thousands |
Mar. 31, 2019 |
Dec. 31, 2018 |
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| License revenue | |||||||||
| Receivables | [1] | $ 0 | $ 174 | ||||||
| Deferred revenue | [2] | 1,235 | 1,179 | ||||||
| Deferred gift card and gift certificate revenue | |||||||||
| Deferred revenue | [3] | $ 331 | $ 491 | ||||||
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- Definition Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time. 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 | ||||||||||
- Details
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- Details
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