Option to purchase shares of common stock, price per share

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- Definition

Option to purchase shares of common stock, shares

+ References

No definition available.

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- Definition

Warrants exercised

+ References

No definition available.

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- Definition

Warrants issued new shares

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No definition available.

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- Definition

Amount of other increase (decrease) in additional paid in capital (APIC).

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No definition available.

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- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644

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- Definition

The number of new shares issued in the conversion of stock in a noncash (or part noncash) transaction. Noncash is defined as transactions during a period that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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- Definition

The cash inflow from the additional capital contribution to the entity.

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- Definition

The cash inflow from the issuance of common stock, preferred stock, treasury stock, stock options, and other types of equity.

+ References

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- Definition

The cash inflow associated with the amount received from holders exercising their stock warrants.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
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-Topic 230
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- Definition

Per share or per unit amount of equity securities issued.

+ References

No definition available.

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- Definition

Number of new stock issued during the period.

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9. Stockholders' Equity (Details Narrative) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended		3 Months Ended	11 Months Ended	12 Months Ended
	Feb. 13, 2020	Feb. 06, 2020	Apr. 02, 2020	Nov. 19, 2019	Dec. 31, 2020	Dec. 31, 2019
Proceeds from issuance of stock and warrants					$ 12,087	$ 708
Proceeds from exercise of warrants					$ 3,856	$ 72
February 2020 Registered Offering [Member]
Stock issued during period, shares		197,056
Stock price per share		$ 8.705
Proceeds from issuance of stock and warrants		$ 1,467
February 2020 Registered Direct Warrants [Member]
Stock price per share		$ 0.125
Warrants issued		197,056
Warrant exercise price		$ 8.71
February 2020 Placement Agent Warrants [Member]
Warrants issued		14,779
Warrant exercise price		$ 11.0375
November 2019 Offering [Member]
Stock issued during period, shares				181,818
Proceeds from the issuance of common stock				$ 766
Stock price per share				$ 5.50
Increase in fair value due to modification of price				$ 800
November 2019 Offering [Member] \| H.C. Wainwright [Member]
Warrants issued				13,636
Warrant exercise price				$ 6.875
October 2018 Offering [Member]
Warrant exercise price				10.45
October 2018 Offering [Member] \| H.C. Wainwright [Member]
Warrant exercise price				$ 13.06
February 2020 Underwritten Public Offering [Member]
Stock issued during period, shares	993,633
Stock price per share	$ 4.00
Proceeds from issuance of stock and warrants	$ 7,093
February 2020 Underwritten Public Offering [Member] \| 2020 Pre-Funded Warrants [Member]
Stock price per share	$ 3.999
Warrants issued	1,006,367
Warrant exercise price	$ 0.001
February 2020 Underwritten Public Offering [Member] \| February 2020 Warrants [Member]
Stock price per share	$ 4.00
Warrants issued	2,000,000
February 2020 Underwritten Public Offering [Member] \| February 2020 Underwriter Warrants [Member]
Warrants issued	150,000
Warrant exercise price	$ 5.00
February 2020 Underwritten Public Offering [Member] \| Underwriter [Member] \| February 2020 Warrants [Member]
Stock price per share	$ 0.001
Warrants issued	300,000
Option to purchase shares of common stock, shares	300,000
Option to purchase shares of common stock, price per share	$ 3.999
April 2020 Offering [Member]
Stock issued during period, shares			1,713,064
Stock price per share			$ 2.21
Proceeds from issuance of stock and warrants			$ 3,527
Warrants converted, shares converted					428,266
Warrants converted, common stock issued					225,796
April 2020 Offering [Member] \| April 2020 Warrants [Member]
Stock price per share			$ 0.125
Warrants issued			1,713,064
Warrant exercise price			$ 2.21
April 2020 Offering [Member] \| April 2020 Placement Agent Warrants [Member]
Warrants issued			128,480
Warrant exercise price			$ 2.9188