Related Party Transactions - Additional Information (Details) - USD ($) $ in Thousands |
3 Months Ended | |
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Mar. 31, 2019 |
Mar. 31, 2018 |
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Investor and Holder of August 2016 Series B Warrants | ||
Related Party Transaction [Line Items] | ||
Revenue from related party | $ 0 | $ 797 |
B . Riley Principal Investments | ||
Related Party Transaction [Line Items] | ||
Consulting fees | $ 50 | $ 50 |
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- Definition Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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