Income Taxes Unrecognized Benefits (Details) - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Tax Benefits Associated With Nol And Tax Credit Carryforwards	$ 2,000,000	$ 2,000,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	2,000,000	1,000,000
Unrecognized Tax Benefits That Would Not Impact Effective Tax Rate	1,000,000	1,000,000
Total unrecognized tax benefit	3,000,000	2,000,000
Decrease in Unrecognized Tax Benefits is Reasonably Possible	1,000,000
Unrecognized Tax Benefits, Income Tax Penalties Accrued	$ 0	$ 0