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)

v3.19.1

Common Stock (Details Narrative) - USD ($)			3 Months Ended
Common Stock (Details Narrative) - USD ($)	Jan. 30, 2019	Jan. 05, 2018	Mar. 31, 2019	Mar. 31, 2018
Aggregate common stock sold, shares			947,454
Gross proceeds from sale of stock			$ 40,494,253	$ 11,856,655
Stock issuance cost			$ 2,571,552	$ 505,368
Issuance of common stock upon exercise of stock options, shares			61,771
Warrants [Member]
Aggregate common stock sold, shares			947,454
Warrants to purchase common stock			1,083,500
Equity Option [Member]
Issuance of common stock upon exercise of stock options, shares			61,771	36,465
Proceeds from exercise of stock options			$ 204,003	$ 156,655
January 2018 Sales Agreement [Member] \| Institutional Investor [Member]
Aggregate common stock sold, shares				1,500,000
Gross proceeds from sale of stock				$ 11,200,000
At the Market Offering [Member] \| Maximum [Member]
Number of common stock value sold		$ 50,000,000
Public Offering [Member]
Number of common stock value sold	$ 6,198,500
Gross proceeds from sale of stock	$ 40,290,250
Purchase price per share	$ 6.50
Stock issuance cost	$ 2,600,000
Public Offering [Member] \| Underwriters [Member]
Number of common stock value sold	$ 808,500

- Definition

Amount of decrease in additional paid in capital (APIC) resulting from direct costs associated with issuing stock. Includes, but is not limited to, legal and accounting fees and direct costs associated with stock issues under a shelf registration.

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