Stock Options - Equity Incentive Plan (Details) - shares	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Non Qualified Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options available for grant at end of year (in shares)	356,156	381,531	423,969

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details