Stockholders' Equity - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended	3 Months Ended		9 Months Ended
	Apr. 30, 2020	Mar. 31, 2021	Mar. 31, 2020	Sep. 30, 2020	Jan. 01, 2021	Jan. 01, 2020
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Reduction in exercise price of each warrant from public offering price for pre-funded warrants per share	$ 0.0001
Maximum ownership percentage for outstanding warrants to purchase shares of common stock to be exercised	4.99%
Period after notice received by company maximum ownership percentage to be effective description		The Revised Maximum Ownership Percentage would be effective 61 days after the notice is received by the Company
Ownership percentage for outstanding warrants To purchase shares of common stock to be exercised to certain holders.	9.99%
2016 Equity Incentive Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Percentage of outstanding share of common stock				4.00%
Additional number of shares available for issuance					1,918,363	1,163,377
Common stock available for future issuance		1,369,443
2016 Equity Incentive Plan | Stock Options
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock option to purchase an aggregate of common stock shares		1,667,900	1,205,000
Weighted-average grant date fair value		$ 5.14	$ 5.27
2016 Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Stock option to purchase an aggregate of common stock shares		38,008	25,928
Aggregate cash proceeds from sale of shares		$ 0.2	$ 0.2
Maximum
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Maximum ownership percentage for outstanding warrants to purchase shares of common stock to be exercised	19.99%