Condensed Statements of Stockholders' (Deficit) Equity (Unaudited) - USD ($)	Total	At The Market Offering [Member]	Common Stock [Member]	Common Stock [Member] At The Market Offering [Member]	Additional Paid-In Capital [Member]	Additional Paid-In Capital [Member] At The Market Offering [Member]	Accumulated Deficit [Member]
Beginning Balance at Dec. 31, 2018	$ 4,025,320		$ 1,743		$ 82,628,312		$ (78,604,735)
Beginning Balance, Shares at Dec. 31, 2018			17,427,533
Stock-based compensation expense	378,959				378,959
Issuance of common stock, net	636,432		$ 45		636,387
Issuance of common stock, shares net			450,000
Net loss	(1,965,266)						(1,965,266)
Ending Balance at Mar. 31, 2019	3,075,445		$ 1,788		83,643,658		(80,570,001)
Ending Balance, Shares at Mar. 31, 2019			17,877,533
Beginning Balance at Dec. 31, 2018	4,025,320		$ 1,743		82,628,312		(78,604,735)
Beginning Balance, Shares at Dec. 31, 2018			17,427,533
Net loss	(5,707,427)
Ending Balance at Sep. 30, 2019	5,173,197		$ 2,423		89,482,936		(84,312,162)
Ending Balance, Shares at Sep. 30, 2019			24,231,914
Beginning Balance at Mar. 31, 2019	3,075,445		$ 1,788		83,643,658		(80,570,001)
Beginning Balance, Shares at Mar. 31, 2019			17,877,533
Stock-based compensation expense	344,841				344,841
Issuance of common stock, net	5,039,956		$ 623		5,039,333
Issuance of common stock, shares net			6,236,423
Net loss	(2,114,096)						(2,114,096)
Ending Balance at Jun. 30, 2019	6,346,146		$ 2,411		89,027,832		(82,684,097)
Ending Balance, Shares at Jun. 30, 2019			24,113,956
Stock-based compensation expense	331,303				331,303
Issuance of common stock, net	123,813		$ 12		123,801
Issuance of common stock, shares net			117,958
Net loss	(1,628,065)						(1,628,065)
Ending Balance at Sep. 30, 2019	5,173,197		$ 2,423		89,482,936		(84,312,162)
Ending Balance, Shares at Sep. 30, 2019			24,231,914
Beginning Balance at Dec. 31, 2019	$ 4,380,545		$ 2,443		90,108,492		(85,730,390)
Beginning Balance, Shares at Dec. 31, 2019	24,431,914		24,431,914
Stock-based compensation expense	$ 310,162				310,162
Issuance of common stock from employee stock purchase plan	21,250		$ 3		21,247
Issuance of common stock from employee stock purchase plan, shares			25,000
Net loss	(1,790,309)						(1,790,309)
Ending Balance at Mar. 31, 2020	2,921,648		$ 2,446		90,439,901		(87,520,699)
Ending Balance, Shares at Mar. 31, 2020			24,456,914
Beginning Balance at Dec. 31, 2019	$ 4,380,545		$ 2,443		90,108,492		(85,730,390)
Beginning Balance, Shares at Dec. 31, 2019	24,431,914		24,431,914
Issuance of common stock from warrant exercise, shares	381,625
Issuance of common stock from stock option exercise, shares	4,237
Net loss	$ (10,886,809)
Ending Balance at Sep. 30, 2020	$ (1,923,415)		$ 2,633		94,691,151		(96,617,199)
Ending Balance, Shares at Sep. 30, 2020	26,332,122		26,332,122
Beginning Balance at Mar. 31, 2020	$ 2,921,648		$ 2,446		90,439,901		(87,520,699)
Beginning Balance, Shares at Mar. 31, 2020			24,456,914
Stock-based compensation expense	362,955				362,955
Issuance of common stock, net		$ 3,309,116		$ 140		$ 3,308,976
Issuance of common stock, shares net				1,395,855
Issuance of common stock from warrant exercises			$ 15		(15)
Issuance of common stock from warrant exercise, shares			158,494
Net loss	(6,967,395)						(6,967,395)
Ending Balance at Jun. 30, 2020	(373,676)		$ 2,601		94,111,817		(94,488,094)
Ending Balance, Shares at Jun. 30, 2020			26,011,263
Stock-based compensation expense	478,574				478,574
Issuance of common stock from employee stock purchase plan	98,165		$ 9		98,156
Issuance of common stock from employee stock purchase plan, shares			93,491
Issuance of common stock from warrant exercises			$ 22		(22)
Issuance of common stock from warrant exercise, shares			223,131
Issuance of common stock from stock option exercise	2,627		$ 1		2,626
Issuance of common stock from stock option exercise, shares			4,237
Net loss	(2,129,105)						(2,129,105)
Ending Balance at Sep. 30, 2020	$ (1,923,415)		$ 2,633		$ 94,691,151		$ (96,617,199)
Ending Balance, Shares at Sep. 30, 2020	26,332,122		26,332,122