Commitments and Contingencies (Narrative) (Details)	12 Months Ended
	Dec. 31, 2020 USD ($) item property	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Loss Contingencies [Line Items]
Management fees incurred	$ 1,042,000	$ 1,813,000	$ 1,779,000
Incentive management fee	$ 0	141,000	333,000.000
Management agreement renewal additional term	1 year
Management agreement written notice of termination period	90 days
Cost of goods and services sold	$ 29,563,000	38,769,000	41,008,000
Number of hotels that dropped below required level of guest satisfaction | property	2
Number of land lease agreements related to properties owned | item	0
Employer contribution expense	$ 26,000	52,000	71,000
Office Building [Member]
Loss Contingencies [Line Items]
Lease expense	$ 27,000	133,000	160,000
Minimum [Member]
Loss Contingencies [Line Items]
Management fee percent	3.00%
Management agreement term	1 year
Franchise fee percent	3.30%
Other franchiser programs and service fee percent	2.50%
Franchise agreement term	10 years
Lease expiration	Dec. 31, 2019
Maximum [Member]
Loss Contingencies [Line Items]
Management fee percent	3.50%
Incentive fee percent	5.00%
Management agreement term	3 years
Franchise fee percent	5.50%
Other franchiser programs and service fee percent	6.00%
Franchise agreement term	25 years
Land [Member]
Loss Contingencies [Line Items]
Lease expense	$ 0	0	0
Franchise [Member]
Loss Contingencies [Line Items]
Cost of goods and services sold	$ 2,597,000	$ 4,685,000	$ 4,834,000