Organization and Description of Business Organization and Description of Business (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Sep. 10, 2019	Mar. 31, 2020	Mar. 31, 2019
Accounting Policies [Abstract]
Common stock, shares issued (in shares)	1,575,342
Shares issued, price per share (in USD per share)	$ 73.00
Underwriters' option to purchase additional shares of common stock (in shares)	205,479
Proceeds from issuance of common stock	$ 107,300	$ 2,969	$ 2,120