Income Taxes - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Income Taxes [Line Items]
Valuation allowance	$ 46,148,000	$ 38,562,000
Increase (decrease) in valuation allowance	7,600,000	(31,600,000)
Interest and penalties	0	$ 0
Domestic Tax Authority
Income Taxes [Line Items]
Operating loss carryforwards	311,000,000
Net operating losses to expire unutilized	152,000,000
State and Local Jurisdiction
Income Taxes [Line Items]
Operating loss carryforwards	113,000,000
Net operating losses to expire unutilized	$ 64,000,000