Summary of Significant Accounting Policies Accounts Receivable and Deferred Revenue (Details) - Resident Fees and Services - USD ($)	9 Months Ended
	Sep. 30, 2020	Jan. 01, 2020
Resident fees and services	$ 3,551,000	$ 3,804,000
Contract with customer, asset, increase (decrease)	(253,000)
Medicaid
Resident fees and services	2,317,000	3,154,000
Contract with customer, asset, increase (decrease)	(837,000)
Private and Other Payors
Resident fees and services	1,234,000	$ 650,000
Contract with customer, asset, increase (decrease)	$ 584,000