Subsequent Events (Details) $ / shares in Units, $ in Thousands			9 Months Ended
	Nov. 03, 2020 USD ($) shares	Oct. 05, 2020 USD ($) trading_day $ / shares shares	Sep. 30, 2020 USD ($) shares	Sep. 30, 2019 USD ($)
Subsequent Event [Line Items]
Issuance of common stock upon the exercise of stock options (in shares)			25,000
Proceeds from exercise of stock options | $			$ 436	$ 283
Subsequent Event | Public Offering
Subsequent Event [Line Items]
Number of shares issued in transaction (in shares)		3,350,000
Sale of stock (in dollars per share) | $ / shares		$ 38.00
Sale of stock, consideration received on transaction | $		$ 121,700
Subsequent Event | Over-Allotment Option
Subsequent Event [Line Items]
Number of shares issued in transaction (in shares)		502,500
Sale of stock (in dollars per share) | $ / shares		$ 38.00
Number of days available to purchase additional shares | trading_day		30
Issuance of common stock upon the exercise of stock options (in shares)	266,022
Proceeds from exercise of stock options | $	$ 9,600