Stockholders' Equity - Schedule of 2017 Plan Options Outstanding (Details) - 2017 Plan $ / shares in Units, $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2021 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares
Number of Options Outstanding
Outstanding at beginning of period (in shares) | shares	611,760
Granted (in shares) | shares	147,110
Exercised (in shares) | shares	0
Forfeited (in shares) | shares	(3,000)
Outstanding at end of period (in shares) | shares	755,870	611,760
Weighted- average Exercise Price
Outstanding at beginning of period (in dollars per share) | $ / shares	$ 21.39
Granted (in dollars per share) | $ / shares	11.79
Exercised (in dollars per share) | $ / shares	0
Forfeited (in dollars per share) | $ / shares	8.20
Outstanding at end of period (in dollars per share) | $ / shares	$ 19.58	$ 21.39
Weighted- average Remaining Contractual Term (years)
Outstanding	7 years 9 months 10 days	7 years 10 months 6 days
Aggregate Intrinsic Value
Outstanding | $	$ 484,626	$ 0