Pension Plan (Details) - Components of net periodic pension cost - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Pension Plan (Details) - Components of net periodic pension cost [Line Items]
Interest cost	$ 134,000	$ 76,000	$ 268,000	$ 152,000
Expected return on plan assets	(146,000)	(200,000)	(291,000)	(400,000)
Amortization of net actuarial loss	74,000	72,000	148,000	143,000
Net periodic pension benefit	$ 62,000	$ (52,000)	$ 125,000	$ (105,000)