Joint Venture Agreement - Additional Information (Details) - USD ($) |
3 Months Ended | 6 Months Ended | 74 Months Ended | |||
|---|---|---|---|---|---|---|
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
Jun. 30, 2018 |
Jun. 30, 2019 |
May 31, 2013 |
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| Schedule of Equity Method Investments [Line Items] | ||||||
| Joint venture net loss | $ 0 | $ 3,000 | ||||
| Research and development | ||||||
| Schedule of Equity Method Investments [Line Items] | ||||||
| Joint venture net loss | $ 0 | $ 1,000 | 0 | $ 3,000 | ||
| Equity Method Investee | ||||||
| Schedule of Equity Method Investments [Line Items] | ||||||
| Due from related parties, current | $ 10,000 | $ 10,000 | $ 10,000 | |||
| Joint Venture Agreement | ||||||
| Schedule of Equity Method Investments [Line Items] | ||||||
| Percentage of outstanding membership interests in joint venture (percent) | 50.00% | |||||
| Investment in joint venture | $ 2,000,000 | |||||
| Fair value of capital contribution in joint venture | $ 6,000,000 | |||||
| Maximum | Joint Venture Agreement | ||||||
| Schedule of Equity Method Investments [Line Items] | ||||||
| Required payments to acquire interest in joint venture | $ 6,000,000 | |||||
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- Definition Required Payments to Acquire Interest in Joint Venture No definition available.
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- Definition The aggregate amount of receivables to be collected from related parties where one party can exercise control or significant influence over another party; including affiliates, owners or officers and their immediate families, pension trusts, and so forth, at the financial statement date. which are usually due within one year (or one business cycle). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition This item represents the aggregate value of each identified investment accounted for under the equity method of accounting based on the quoted market price for those investments in common stock for which a quoted market price is available. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of income (loss) for proportionate share of equity method investee's income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The cash outflow associated with the investment in or advances to an entity in which the reporting entity shares control of the entity with another party or group. 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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