Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Common Stock (Details Narrative)

v3.20.2

Common Stock (Details Narrative) - USD ($)				1 Months Ended	3 Months Ended		6 Months Ended
Common Stock (Details Narrative) - USD ($)	Apr. 07, 2020	Feb. 11, 2020	Jan. 30, 2019	Jul. 31, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019
Common stock, shares authorized					150,000,000		150,000,000		150,000,000
Common stock, par value					$ 0.0001		$ 0.0001		$ 0.0001
Common stock, shares issued					80,655,848		80,655,848		64,672,893
Common stock, shares outstanding					80,655,848		80,655,848		64,672,893
Gross proceeds from sale of stock							$ 90,003,980	$ 40,596,961
Stock issuance cost						$ 2,051,853	$ 5,014,643	$ 2,571,552
Warrants [Member]
Issuance of common stock upon exercise of stock options, shares						172,414		1,119,868
Warrants to purchase shares of common stock, exercised						200,000		1,283,500
Stock Option [Member]
Issuance of common stock upon exercise of stock options, shares					51,605	16,458	202,494	78,229
Proceeds from exercise of stock options					$ 286,310	$ 102,708	$ 302,305	$ 306,711
April 2020 Sale Agreement [Member]
Aggregate common stock sold, shares							8,113,794
Gross proceeds from sale of stock							$ 43,702,000
Stock subscriptions receivable					$ 16,676,000		$ 16,676,000
April 2020 Sale Agreement [Member] \| Subsequent Event [Member]
Aggregate common stock sold, shares				1,053,286
Gross proceeds from sale of stock				$ 8,148,000
April 2020 Sale Agreement [Member] \| Maximum [Member]
Value of common stock to be sold	$ 75,000,000
April 2020 Sale Agreement [Member] \| Jefferies LLC [Member] \| Maximum [Member]
Value of common stock to be sold	$ 75,000,000
Public Offering [Member]
Aggregate common stock sold, shares		7,666,667	6,198,500
Purchase price per share		$ 6.00	$ 6.50
Gross proceeds from sale of stock		$ 46,000,000	$ 40,290,250
Stock issuance cost		$ 3,147,000	$ 2,572,000
Public Offering [Member] \| Underwriters [Member]
Aggregate common stock sold, shares		1,000,000	808,500

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