Schedule of Debt (Parentheticals) (Details) - Variable Rate Mortgage Loans [Member] - London Interbank Offered Rate (LIBOR) [Member]	Dec. 31, 2019
Minimum [Member]
Debt Instrument [Line Items]
Debt instrument, effective fixed interest rate	2.50%
Maximum [Member]
Debt Instrument [Line Items]
Debt instrument, effective fixed interest rate	4.10%

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration