Stockholders' Equity - Additional Information (Detail) - USD ($)	1 Months Ended					3 Months Ended				6 Months Ended
	Jun. 30, 2021	May 31, 2021	Jan. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020	Mar. 11, 2020
Class of Stock [Line Items]
Stock Issued During Period, Value, Employee Stock Purchase Plan	$ 18,950		$ 4,197	$ 7,606		$ 18,950	$ 4,197	$ 7,606
Net proceeds from issuance of stock and warrants										$ 3,789,995	$ 4,151,037
Common stock, par value (in dollars per share)	$ 0.0001		$ 0.0001			$ 0.0001				$ 0.0001		$ 0.0001
Compensation cost not yet recognized	$ 302,249					$ 302,249				$ 302,249
Compensation cost not yet recognized, period for recognition										1 year 1 month 6 days
Stock Issued During Period, Value, Restricted Stock Award, Gross		$ 125,000				$ 0
Common Stock [Member]
Class of Stock [Line Items]
Stock Issued During Period, Shares, Employee Stock Purchase Plans	7,055		2,408	4,364		7,055	2,408	4,364
Stock Issued During Period, Value, Employee Stock Purchase Plan						$ 1	$ 1	$ 1
Stock Issued During Period, Shares, New Issues						1,207,681		2,092,541	256,078
Stock Issued During Period, Shares, Restricted Stock Award, Gross		42,808				13,911
Stock Issued During Period, Value, Restricted Stock Award, Gross						$ 3
Common Stock [Member]
Class of Stock [Line Items]
Stock Issued During Period, Shares, Restricted Stock Award, Forfeited						7,493
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures						21,404
Stock Issued During Period, Shares, Restricted Stock Award, Forfeited						7,493
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures						21,404
Separation Agreement [Member] | Common Stock [Member]
Class of Stock [Line Items]
Stock Price (in dollars per share)													$ 1.41
Common Stock, Value, Issued					$ 43,751
Stock Issued During Period, Shares, Other					31,000
Restricted Stock | Common Stock [Member]
Class of Stock [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares						13,911
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested, Number of Shares						13,911
At The Market Offering Program [Member]
Class of Stock [Line Items]
Proceeds from Issuance of Common Stock										$ 3,766,848	$ 4,143,431
At The Market Offering Program [Member] | Common Stock [Member]
Class of Stock [Line Items]
Stock Issued During Period, Shares, New Issues										1,207,681	2,348,619