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Stock-Based Compensation - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense, tax benefit	$ 500	$ 200	$ 100
Stock-based compensation	14,615	4,251	2,706
Unrecognized compensation expense	$ 26,600
Equity Incentive Plan 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized under plan approved by directors (in shares)	2,700,000
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 9,585	1,386	456
Stock Options \| Equity Incentive Plan 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period	10 years
Stock Options \| Equity Incentive Plan 2015 \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	1 year
Stock Options \| Equity Incentive Plan 2015 \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	4 years
RSA
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 838	996	2,225
RSA \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	1 year
RSA \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
RSA and RSU \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	1 year
RSA and RSU \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	4 years
Performance-based RSA
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 776	786	$ 2,012
Performance-based RSA \| Government
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation		$ 100