Condensed Statements of Stockholders' 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	(4,079,362)
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
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
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	158,494
Net loss	$ (8,757,704)
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		26,011,263
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		26,011,263