Consolidated Statements of Cash Flows (Parenthetical) - $ / shares |
Dec. 31, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|---|
| Statement of Cash Flows [Abstract] | |||
| Class of warrant or right, exercise price of warrants or rights | $ 5.00 | $ 5.00 | $ 5.00 |
| Class of warrant or right, exercise price of warrants or rights | $ 8.00 | $ 8.00 | $ 8.00 |
| X | ||||||||||
- Definition Class of warrant or right, exercise price of warrants or rights. No definition available.
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| X | ||||||||||
- Definition Exercise price per share or per unit of warrants or rights outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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