Income Taxes - Narrative (Details) - USD ($) $ in Thousands		12 Months Ended
	Apr. 23, 2019	Dec. 31, 2020	Dec. 31, 2019
Income Tax Contingency [Line Items]
Income taxes paid		$ 200
Income tax refunds			$ 300
Pretax income (loss) including permanently excludable loss		$ (26,700)	8,700
Period to carry forward general business credits		20 years
Net deferred tax liability		$ 886	1,105
Tax credit carryforwards		8,400
Federal net operating loss carryforwards		13,200
State net operating loss carryforwards		6,000
Income tax expense (benefit), alternative minimum tax, CARES Act		$ 2,200
Share Purchase Agreement, Second Amended And Restated Warrant | Series B Convertible Preferred Stock
Income Tax Contingency [Line Items]
Exercise of private placement warrants (in shares)	4,049,759
Percent ownership of outstanding common stock	51.50%
Private placement warranty liability
Income Tax Contingency [Line Items]
Permanently excludable loss associated with change in valuation of warrants			$ 1,400