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Mortgages Payable (Details) | Dec. 31, 2021 USD ($) Property | Dec. 31, 2020 USD ($)
--- | --- | ---
Debt Instrument [Line Items] |  |
Accumulated amortization | $ 19,377,000 | $ 17,294,000
Debt costs, net of accumulated amortization | (7,443,000) | (1,917,000)
Long-term Debt, Fiscal Year Maturity [Abstract] |  |
Mortgages payable, including unamortized premium and net of unamortized debt costs | 10,697,000 | 11,395,000
Mortgages [Member] |  |
Debt Instrument [Line Items] |  |
Debt costs | (147,000) | (147,000)
Accumulated amortization | 125,000 | 108,000
Debt costs, net of accumulated amortization | (22,000) | (39,000)
Mortgages payable, including unamortized premium and net of unamortized debt costs | 10,697,000 | 11,395,000
Long-term Debt, Fiscal Year Maturity [Abstract] |  |
2022 | 750,000 |
2023 | 9,969,000 |
Mortgages payable, including unamortized premium and net of unamortized debt costs | 10,719,000 |
Mortgages [Member] | November 2014 |  |
Debt Instrument [Line Items] |  |
Initial Balance | $ 15,151,000 |
Interest Rate | 5.23% |
Carrying Value of Encumbered Asset(s) | $ 18,972,000 |
Outstanding Principal Balance | $ 10,719,000 | $ 11,434,000
Number of encumbered assets | Property | 5 |

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- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=123466204&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 + Details
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