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Stockholders' Equity (Details Narrative) - USD ($)					1 Months Ended	2 Months Ended	6 Months Ended		12 Months Ended
	Jun. 22, 2020	Feb. 27, 2020	Dec. 04, 2018	Aug. 31, 2018	Sep. 30, 2018	Mar. 05, 2020	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Dec. 31, 2018	Mar. 12, 2020
Shelf registration statement amount					$ 75,000,000
Proceeds from issuance of common stock							$ 18,182,599	$ 4,464,060
Warrants exercise price							$ 0.01
2019 Aspire Purchase Agreements [Member]
Aggregate offering price, additions				$ 15,000,000					$ 10,000,000
Aggregate offering price, term				24 months					24 months
Stock issued during period, shares, new issues						1,000,000			500,000
Proceeds from issuance of common stock						$ 1,600,000			$ 700,000
2018 Aspire Purchase Agreements [Member]
Stock issued during period, shares, new issues									3,300,000	100,000
Proceeds from issuance of common stock									$ 6,300,000	$ 200,000
Capital on DemandTM Sales Agreement [Member]
Aggregate offering price			$ 16,000,000
Capital on Demand Agreement [Member]
Stock issued during period, shares, new issues							1,200,000		500,000
Proceeds from issuance of common stock							$ 3,500,000		$ 1,000,000
Aggregate value available for issuance							$ 11,500,000
Securities Purchase Agreement [Member]
Stock issued during period, shares, new issues		4,571,428
Proceeds from issuance of common stock		$ 4,800,000
Shares issued, price per share		$ 1.05
Securities Purchase Agreement [Member] | Original Warrants [Member]
Number of warrants to purchase common stock		2,971,428
Warrants term		5 years
Warrants exercise price		$ 1.15
Private Exchange Agreements [Member] | Warrant [Member]
Number of warrants to purchase common stock											3,200,000
Warrants term											5 years
Warrants exercise price											$ 1.24
Underwriting Agreement [Member] | Underwritten Offering [Member]
Stock issued during period, shares, new issues	2,666,667
Proceeds from issuance of common stock	$ 9,100,000
Shares issued, price per share	$ 3.75
Shares purchased, price per share	3.4875
Underwriting discount price per share	$ 0.2625
Percentage of underwriting discount on public offering price	0.70%

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