Nature of Operations and Business Activities (Detail Textuals) - USD ($) |
3 Months Ended | 12 Months Ended | ||||
|---|---|---|---|---|---|---|
Mar. 31, 2019 |
Dec. 31, 2018 |
Oct. 05, 2018 |
Mar. 31, 2018 |
Dec. 31, 2017 |
Dec. 31, 2016 |
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| Nature Of Operations And Business Activities [Line Items] | ||||||
| Accumulated deficit | $ 47,999,499 | $ 33,225,107 | $ 14,030,871 | |||
| Stockholders' deficit | 27,864,191 | 15,562,252 | $ 5,753,979 | 3,569,506 | $ 2,914,235 | |
| Working capital deficit | 23,989,664 | 13,985,284 | ||||
| Cash and cash equivalents | 4,412,952 | 1,853,373 | $ 2,945,312 | $ 259,955 | ||
| Aggregate gross proceeds | 900,000 | |||||
| Emerald Financing Warrant Liability | ||||||
| Nature Of Operations And Business Activities [Line Items] | ||||||
| Amount of cash inflow from convertible debt - related party | $ 4,000,000 | 3,250,000 | ||||
| Aggregate gross proceeds | $ 400,000 | |||||
| Emerald Financing Warrant Liability | Multi-Draw Credit Agreement | ||||||
| Nature Of Operations And Business Activities [Line Items] | ||||||
| Maximum borrowing capacity | $ 20,000,000 | |||||
| Principal amounts of borrowing capacity | $ 250,000 |
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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 Represent working capital deficit. No definition available.
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- Definition Short-Term financing which is expected to be paid back relatively quickly, such as by a subsequent longer-term loan. Also called swing loan or bridge financing. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of cash inflow from debt classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The cumulative amount of the reporting entity's undistributed earnings or deficit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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