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Share-Based Compensation - Additional Information (Details) - USD ($)	1 Months Ended		3 Months Ended
	Oct. 31, 2019	Sep. 30, 2019	Mar. 31, 2020	Mar. 31, 2019
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total share-based compensation			$ 493,000	$ 35,000
Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of common shares issuable under the plan (in shares)	225,188
Percentage of increase in number of shares of capital stock issued and outstanding	1.00%
Percent of purchase shares of common stock	85.00%
First offering period	6 months
Commencement date of first six month offering period	Jan. 01, 2020
Total share-based compensation			$ 13,000
Number of shares of common stock available for issuance under ESPP			363,078
2019 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Number of common shares issuable under the plan (in shares)		2,844,193
Percentage of increase in number of shares of capital stock issued and outstanding			4.00%
Common stock reserved and available for issuance as future option grants			1,676,191
Maximum | Employee Stock Purchase Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Period for increase in number of shares of common stock reserved for issuance	10 years
Maximum | 2019 Plan
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Period for increase in number of shares of common stock reserved for issuance			10 years

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 718
-SubTopic 10
-Section 50
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