Liquidity and Plan of Operations (Details Narrative) - USD ($) |
3 Months Ended | ||||
|---|---|---|---|---|---|
Mar. 19, 2019 |
Mar. 31, 2019 |
Mar. 31, 2018 |
Dec. 31, 2018 |
Dec. 31, 2017 |
|
| Accumulated deficit | $ (69,995,467) | $ (65,944,759) | |||
| Net loss | (4,050,708) | $ (4,110,004) | |||
| Proceeds from public offering of common stock, gross | $ 30,000,000 | ||||
| Proceeds from issuance initial public offering | 27,900,000 | 30,168,307 | |||
| Cash and cash equivalents | 39,412,546 | 4,263,000 | 12,446,838 | $ 7,307,000 | |
| Restricted cash | $ 586,000 | $ 692,000 | $ 561,000 | $ 692,000 | |
| Over-Allotment Option [Member] | |||||
| Proceeds from issuance initial public offering | $ 2,300,000 | ||||
| X | ||||||||||
- Definition Proceeds from public offering of common stock, gross. No definition available.
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| X | ||||||||||
- 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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| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The cash inflow associated with the amount received from entity's first offering of stock to the public. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- 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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| X | ||||||||||
- Details
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