Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($)	Preferred Stock [Member] Series B Convertible Preferred Stock [Member]	Preferred Stock Additional Paid-in Capital [Member] Series B Convertible Preferred Stock [Member]	Common Stock [Member]	Common Stock Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2018	2,379		5,846,552
Balance at Dec. 31, 2018	$ 2	$ 2,378,997	$ 1,052,372	$ 82,204,902	$ (76,831,263)	$ 8,805,010
Issuance of common stock upon warrant exercise (in shares)			2,799,188
Issuance of common stock upon warrant exercise			$ 503,854	10,832,856
Conversion of Series B convertible preferred stock to common stock (in shares)	1,677		(476,431)
Conversion of Series B convertible preferred stock to common stock	$ (1)	(1,676,998)	$ 85,753	1,591,246
Compensation cost for stock options granted				275,833		275,833
Reclassification of stock-based compensation liability upon option cancellation				3,151,944		3,151,944
Net loss					(4,073,307)	(4,073,307)
Conversion of Series B convertible preferred stock to common stock (in shares)	(1,677)		476,431
Balance at Mar. 31, 2019	$ 1	701,999	$ 1,641,979	98,056,781	(80,904,570)	19,496,190
Balance (in shares) at Mar. 31, 2019	702		9,122,171
Balance (in shares) at Dec. 31, 2018	2,379		5,846,552
Balance at Dec. 31, 2018	$ 2	2,378,997	$ 1,052,372	82,204,902	(76,831,263)	$ 8,805,010
Issuance of common stock upon warrant exercise (in shares)						2,800,000
Net loss						$ (14,621,750)
Balance at Sep. 30, 2019	$ 1	670,999	$ 1,643,565	104,156,643	(91,453,013)	15,018,195
Balance (in shares) at Sep. 30, 2019	671		9,130,984
Balance (in shares) at Mar. 31, 2019	702		9,122,171
Balance at Mar. 31, 2019	$ 1	701,999	$ 1,641,979	98,056,781	(80,904,570)	19,496,190
Conversion of Series B convertible preferred stock to common stock (in shares)	26		(7,392)
Conversion of Series B convertible preferred stock to common stock		(26,000)	$ 1,330	24,670
Compensation cost for stock options granted				5,318,796		5,318,796
Net loss					(7,262,529)	(7,262,529)
Conversion of Series B convertible preferred stock to common stock (in shares)	(26)		7,392
Balance at Jun. 30, 2019	$ 1	675,999	$ 1,643,309	103,400,247	(88,167,099)	17,552,457
Balance (in shares) at Jun. 30, 2019	676		9,129,563
Conversion of Series B convertible preferred stock to common stock (in shares)	5		(1,421)
Conversion of Series B convertible preferred stock to common stock		(5,000)	$ 256	4,744
Compensation cost for stock options granted				751,652		751,652
Net loss					(3,285,914)	(3,285,914)
Conversion of Series B convertible preferred stock to common stock (in shares)	(5)		1,421
Balance at Sep. 30, 2019	$ 1	670,999	$ 1,643,565	104,156,643	(91,453,013)	15,018,195
Balance (in shares) at Sep. 30, 2019	671		9,130,984
Balance (in shares) at Dec. 31, 2019	671		9,130,984
Balance at Dec. 31, 2019	$ 1	670,999	$ 1,643,565	104,912,480	(94,071,040)	13,156,005
Compensation cost for stock options granted				687,752		687,752
Net loss					(2,947,420)	(2,947,420)
Balance at Mar. 31, 2020	$ 1	670,999	$ 1,643,565	105,600,232	(97,018,460)	10,896,337
Balance (in shares) at Mar. 31, 2020	671		9,130,984
Balance (in shares) at Dec. 31, 2019	671		9,130,984
Balance at Dec. 31, 2019	$ 1	670,999	$ 1,643,565	104,912,480	(94,071,040)	13,156,005
Net loss						(10,344,633)
Balance at Sep. 30, 2020	$ 1	622,999	$ 1,883,553	111,780,197	(104,415,673)	$ 9,871,077
Common stock issued for option exercises (in shares)						225,000
Balance (in shares) at Sep. 30, 2020	623		10,464,250
Balance (in shares) at Mar. 31, 2020	671		9,130,984
Balance at Mar. 31, 2020	$ 1	670,999	$ 1,643,565	105,600,232	(97,018,460)	$ 10,896,337
Conversion of Series B convertible preferred stock to common stock (in shares)	45		(12,786)
Conversion of Series B convertible preferred stock to common stock		(45,000)	$ 2,301	42,699
Compensation cost for stock options granted				1,036,484		1,036,484
Net loss					(3,906,142)	(3,906,142)
Conversion of Series B convertible preferred stock to common stock (in shares)	(45)		12,786
Issuance of common stock, net of issuance costs (in shares)			160,108
Issuance of common stock, net of issuance costs			$ 28,820	318,807		347,627
Balance at Jun. 30, 2020	$ 1	625,999	$ 1,674,686	106,998,222	(100,924,602)	8,374,306
Balance (in shares) at Jun. 30, 2020	626		9,303,878
Conversion of Series B convertible preferred stock to common stock (in shares)	3		(853)
Conversion of Series B convertible preferred stock to common stock		(3,000)	$ 154	2,846
Compensation cost for stock options granted				663,593		663,593
Net loss					(3,491,071)	(3,491,071)
Conversion of Series B convertible preferred stock to common stock (in shares)	(3)		853
Issuance of common stock, net of issuance costs (in shares)			1,083,531
Issuance of common stock, net of issuance costs			$ 195,036	4,143,635		4,338,671
Balance at Sep. 30, 2020	$ 1	622,999	$ 1,883,553	111,780,197	$ (104,415,673)	9,871,077
Common stock issued for option exercises (in shares)			225,000
Common stock issued for option exercises			$ 40,500	500,600		541,100
Shares withheld related to cashless exercise of options and taxes (in shares)			(149,012)
Shares withheld related to cashless exercise of options and taxes			$ (26,823)	$ (528,699)		$ (555,522)
Balance (in shares) at Sep. 30, 2020	623		10,464,250