Income Taxes - Narrative (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Taxes
Tax credit carryforward	$ 156,000
Amount of unrecognized tax benefits	1,437,000	$ 1,437,000	$ 255,000
Tax benefits that would impact the effective tax rate	563,000	563,000
Interest and penalties accrued related to unrecognized tax benefits	89,000	31,000
Penalties accrued related to unrecognized tax benefits	0	$ 0
Federal income tax purpose
Income Taxes
Net operating loss carryforward	20,900,000
California franchise tax purpose
Income Taxes
Net operating loss carryforward	$ 5,700,000

Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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