Stockholders’ Equity - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions		1 Months Ended
	Jan. 01, 2020	Jan. 31, 2020	Jun. 30, 2018
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Options, grants in period (in shares)		1,026,950
Grants in period, weighted average exercise price (in dollars per share)		$ 3.25
Piper Jaffray & Co.
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Maximum amount of common stock eligible to be sold (up to)			$ 50.0
2018 Plan
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Number of additional shares authorized	929,394
Restricted Stock Units (RSUs)
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Stock issued during period (in shares)		156,328
Weighted average grant date fair value (in dollars per share)		$ 3.23