Revenue - Schedule of Contract Assets and Liabilities (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2018 |
Mar. 31, 2019 |
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| Account receivables, net of allowance | $ 7,735 | $ 7,341 |
| Unbilled receivables - current | 3,105 | 3,316 |
| Deferred revenue | 6,595 | $ 5,443 |
| Year-to-date Change [Member] | ||
| Account receivables, net of allowance | (394) | |
| Unbilled receivables - current | 211 | |
| Deferred revenue | $ (1,152) | |
| Changes in Account receivables, net of allowance, percentage | (5.10%) | |
| Changes in Unbilled receivables - current, percentage | 6.80% | |
| Changes in Deferred revenue, percentage | (17.50%) |
| X | ||||||||||
- Definition Percentage of change in unbilled receivables - current percentage. No definition available.
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- Definition Percentage of change in account receivables, net of allowance. No definition available.
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- Definition Percentage of change in deferred revenue. No definition available.
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- Definition Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount received for services rendered and products shipped, but not yet billed, for non-contractual agreements due within one year or the normal operating cycle, if longer. No definition available.
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- Details
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