Consolidated Statement of Changes in Stockholders' Equity (Unaudited) - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2018	3,376,230
Balance at Dec. 31, 2018	$ 3,377	$ 95,532,881	$ (79,924,699)	$ 15,611,559
Stock-based compensation expense		385,605		385,605
Net loss			(8,047,299)	(8,047,299)
Issuance of common stock and warrants, net of issuance costs (in shares)	1,317,060
Issuance of common stock and warrants, net of issuance costs	$ 1,317	5,567,633		5,568,950
Balance (in shares) at Sep. 30, 2019	4,693,290
Balance at Sep. 30, 2019	$ 4,694	101,486,119	(87,971,998)	13,518,815
Balance (in shares) at Jun. 30, 2019	4,693,290
Balance at Jun. 30, 2019	$ 4,694	101,340,798	(85,167,906)	16,177,586
Stock-based compensation expense		145,321		145,321
Net loss			(2,804,092)	(2,804,092)
Balance (in shares) at Sep. 30, 2019	4,693,290
Balance at Sep. 30, 2019	$ 4,694	101,486,119	(87,971,998)	13,518,815
Balance (in shares) at Dec. 31, 2019	33,480,365
Balance at Dec. 31, 2019	$ 33,481	111,824,859	(91,724,078)	20,134,262
Stock-based compensation expense		584,297		584,297
Net loss			(10,123,249)	(10,123,249)
Issuance of common stock and warrants, net of issuance costs (in shares)	11,428,572
Issuance of common stock and warrants, net of issuance costs	$ 11,429	10,330,202		10,341,631
Issuance of common stock upon exercise of warrants (in shares)	19,106,504
Issuance of common stock upon exercise of warrants	$ 19,106	7,768,370		7,787,476
Balance (in shares) at Sep. 30, 2020	64,015,441
Balance at Sep. 30, 2020	$ 64,016	130,507,728	(101,847,327)	28,724,417
Balance (in shares) at Jun. 30, 2020	63,998,298
Balance at Jun. 30, 2020	$ 63,999	130,220,772	(97,408,116)	32,876,655
Stock-based compensation expense		279,473		279,473
Net loss			(4,439,211)	(4,439,211)
Issuance of common stock upon exercise of warrants (in shares)	17,143
Issuance of common stock upon exercise of warrants	$ 17	7,483		7,500
Balance (in shares) at Sep. 30, 2020	64,015,441
Balance at Sep. 30, 2020	$ 64,016	$ 130,507,728	$ (101,847,327)	$ 28,724,417