Pension And Other Liabilities (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Aug. 29, 2014
Defined Benefit Plan Disclosure [Line Items]
Total operating property	$ 286,952,000	$ 306,657,000
Operating lease liabilities - current	23,971,000	23,737,000
Accrued pension liability	3,138,000	3,605,000	$ 7,500,000
Benefit obligation, gross	$ 10,200,000
Discount rate	4.25%
Discount term	15 years
Monthly estate payment amount	$ 57,000
Discounted value	2,700,000
Accumulated prior service cost	$ 3,100,000
Accumulated prior service cost amortization period	15 years
Accrued pension costs included in other liabilities	$ 3,800,000	4,300,000
Service cost	0	0
Lease liability	5,900,000	$ 5,900,000
Chief Executive Officer [Member]
Defined Benefit Plan Disclosure [Line Items]
Estimated amortization of prior service cost next fiscal year	207,000
Supplemental Executive Retirement Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Accrued pension liability			$ 7,600,000
Village East Cinema [Member]
Defined Benefit Plan Disclosure [Line Items]
Operating lease liabilities - current	0.0
Village East Cinema [Member] | Sutton Hill Capital, LLC [Member]
Defined Benefit Plan Disclosure [Line Items]
Purchase option	5,900,000
Total operating property	4,700,000
Operating lease liabilities - current	$ 5,900,000
Lease term	10 years