The amount of threshold offering or sale of shares under the sales agreement.

No definition available.

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- Definition

Represents the monetary amount of working capital, as of the indicated date.

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No definition available.

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Amount of investment in debt and equity securities categorized neither as trading securities nor held-to-maturity securities and intended be sold or mature one year or operating cycle, if longer.

+ References

No definition available.

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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.

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- Definition

Face amount or stated value per share of common stock.

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- Definition

Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities.

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The cumulative amount of the reporting entity's undistributed earnings or deficit.

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Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

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Number of new stock issued during the period.

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Liquidity and Capital Resources (Details) - USD ($)					6 Months Ended
Liquidity and Capital Resources (Details) - USD ($)	Jul. 09, 2019	Jun. 20, 2019	Jun. 17, 2019	Mar. 22, 2019	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018	Dec. 31, 2017
Cash and Cash Equivalents					$ 21,417,159	$ 1,748,135	$ 22,713,980	$ 8,406,917
Investments Available-for -Sale					13,816,079		10,818,059
Working Capital Net					33,400,000
Accumulated Deficit					(291,358,764)		$ (272,388,234)
Net cash used in operating activities					$ (15,778,417)	$ (9,856,940)
Common stock, no par value( per share)				$ 0
Sales Agreement, Threshold Sale Of Shares				$ 40,000,000
Maximum
Sales Agreement, Threshold Sale Of Shares				$ 40,000,000
Public Offering [Member]
Number of shares issued		5,833,334
Price per share		$ 3.00
Over allotment
Sales Agreement, Threshold Sale Of Shares			$ 875,000
Subsequent event
Number of shares issued	425,880
Subsequent event \| Over allotment
Number of shares issued	425,800
Price per share	$ 3.00