Stockholders' Equity - Additional Information (Details) - USD ($)						6 Months Ended
	Apr. 30, 2020	Mar. 18, 2020	Sep. 18, 2019	May 14, 2018	Sep. 19, 2017	Jun. 30, 2020	Jan. 01, 2020	Dec. 31, 2019
Stockholders Equity [Line Items]
Common stock, shares issued						10,612,731		10,095,176
Proceeds from issuance of common stock, net of issuance costs						$ 1,941,095
Number of share outstanding						1,381,975		1,313,475
Awards granted under the plan						68,500
Unrecognized compensation expense						$ 4,500,000
Share based compensation arrangement by share based payment award, Average remaining vesting period						1 year 9 months 18 days
Weighted average grant date fair value of options granted						$ 2.18
2018 Stock Incentive Plan
Stockholders Equity [Line Items]
Number of common stock authorized for issuance				500,000			403,807
Share-based compensation arrangement by share-based payment award, description						In addition, the number of shares authorized for issuance under the 2018 Plan is automatically increased (the “evergreen provision”) on the first day of each fiscal year beginning on January 1, 2019, and ending on (and including) January 1, 2028, in an amount equal to the lesser of (i) 4% of the outstanding shares of common stock on the last day of the immediately preceding fiscal year, or (ii) another amount (including zero) determined by the Company’s Board of Directors. Any shares subject to awards granted under the 2018 Plan that are forfeited or terminated before being exercised or settled, or are not delivered to the participant because such award is settled in cash, will again become available for issuance under the 2018 Plan. Shares withheld to satisfy the grant, exercise price or tax withholding obligation related to an award will again become available for issuance under the 2018 Plan.
Share-based compensation arrangement by share-based payment award, expiration date						Jan. 01, 2028
Share-based compensation arrangement by share-based payment award, percentage of outstanding our common stock						4.00%
Options contractual term				10 years
Available for the grant of future awards						500,453
2018 Stock Incentive Plan | Executive Officers and Employees
Stockholders Equity [Line Items]
Share-based compensation arrangement by share-based payment award, stock options vesting period				4 years
2018 Stock Incentive Plan | Executive Officers and Employees | One-year Anniversary of the Grant Date
Stockholders Equity [Line Items]
Share-based compensation arrangement by share-based payment award, Vesting percentage Share-based compensation arrangement by share-based payment award, Vesting percentage				25.00%
2018 Stock Incentive Plan | Executive Officers and Employees | Quarterly over Remaining Three Years
Stockholders Equity [Line Items]
Share-based compensation arrangement by share-based payment award, Vesting percentage Share-based compensation arrangement by share-based payment award, Vesting percentage				75.00%
2018 Stock Incentive Plan | Executive Officers and Employees | January 1, 2021
Stockholders Equity [Line Items]
Share-based compensation arrangement by share-based payment award, Vesting percentage Share-based compensation arrangement by share-based payment award, Vesting percentage			50.00%
2018 Stock Incentive Plan | Executive Officers and Employees | January 1, 2022
Stockholders Equity [Line Items]
Share-based compensation arrangement by share-based payment award, Vesting percentage Share-based compensation arrangement by share-based payment award, Vesting percentage			50.00%
2013 Stock Incentive Plan
Stockholders Equity [Line Items]
Number of common stock authorized for issuance					165,000
Options contractual term					10 years
Awards granted under the plan						0
2010 Stock Incentive Plan
Stockholders Equity [Line Items]
Number of common stock authorized for issuance					470,170
Options contractual term					10 years
Awards granted under the plan						0
Lincoln Park
Stockholders Equity [Line Items]
Common stock, shares issued	0
Maximum number of common stock shares may sell in single business day on regular purchases	50,000
Expected increase in maximum number of common stock shares may sell in single business day on regular purchases	100,000
Market price of common stock at the time of sale and subject to maximum limit per regular purchase	$ 1,000,000
Maximum percentage of shares may be issued or sold based on outstanding shares immediately prior to execution of agreement.	19.99%
Issuance of common stock for commitment fee, shares	148,148
Fair value of the commitment fee shares, recorded to general and administrative expense along with other costs	$ 400,000
Cost, Product and Service [Extensible List]	us-gaap:GeneralAndAdministrativeExpenseMember
Maximum | 2010 and 2013 Stock Incentive Plan
Stockholders Equity [Line Items]
Number of share outstanding				635,170
Maximum | Lincoln Park
Stockholders Equity [Line Items]
Shares committed to be issued under agreement.	$ 15,000,000
Beneficially ownership percentage	9.99%
Minimum | Lincoln Park
Stockholders Equity [Line Items]
Threshold price per share for issuance of shares under agreement	$ 2.1668
At-the-Market Facility
Stockholders Equity [Line Items]
Common stock, shares issued						363,549
Issuance of common stock, price per share						$ 5.6177
Gross proceeds from issuance of common stock						$ 2,000,000
Common stock offering costs						100,000
Proceeds from issuance of common stock, net of issuance costs						$ 1,900,000
At-the-Market Facility | Maximum
Stockholders Equity [Line Items]
Aggregate offering price of common stock		$ 50,000,000