Stock-based Payments and Director Fees - Restricted Stock Plan Expenses (Details) - Restricted stock - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total expenses for plan grants	$ 291	$ 276	$ 815	$ 526
Restricted stock grants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total expenses for plan grants	284	268	801	493
Director grants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total expenses for plan grants	$ 7	$ 8	$ 14	$ 33