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Income Taxes - Additional Information (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Income Tax [Line Items] |  |  |
Net operating loss carry forwards expiration, description | begin to expire in 2028 |  |
Net operating loss carry forwards expiration year start | 2028 |  |
Income tax return examination, description | Income tax returns for the years ended after December 31, 2015 are open to audit by the federal and New York authorities and for the years ended after December 31, 2014 are open to audit by California state authorities. |  |
Interest or penalties related to uncertain tax positions | $ 0 | $ 0 | $ 0
Adjustment to uncertain tax position | 0 |  |
California Tax |  |  |
Income Tax [Line Items] |  |  |
Net operating loss carryforwards | 0 |  |
Net operating loss carryforwards, subject to 382 limitations | 11,400,000 |  |
New York State Income Tax |  |  |
Income Tax [Line Items] |  |  |
Net operating loss carryforwards | 9,600,000 |  |
Net operating loss carryforwards, subject to 382 limitations | 12,300,000 |  |
New York City Income Tax |  |  |
Income Tax [Line Items] |  |  |
Net operating loss carryforwards | 8,800,000 |  |
Net operating loss carryforwards, subject to 382 limitations | 9,300,000 |  |
Federal |  |  |
Income Tax [Line Items] |  |  |
Net operating loss carryforwards | 32,000 |  |
Net operating loss carryforwards, subject to 382 limitations | $ 3,800,000 |  |

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- Definition A brief description of status of the tax examination, significant findings to date, and the entity's position with respect to the findings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319 + Details
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- Definition Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32559-109319 + Details
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- Definition Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319 + Details
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