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Related Parties (Schedule Of Related Party Expenses) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Related Party Transaction, Expenses from Transactions with Related Party | $ 3,006 | $ 2,733 | $ 2,480
Leasing Agent Fees [Member] |  |  |
Related Party Transaction, Expenses from Transactions with Related Party | 0 | 154 | 133
Operation Of Parking Garages [Member] |  |  |
Related Party Transaction, Expenses from Transactions with Related Party | 81 | 118 | 95
Building Management Fees [Member] |  |  |
Related Party Transaction, Expenses from Transactions with Related Party | 2,110 | 2,001 | 1,935
Property Construction Management Fees [Member] |  |  |
Related Party Transaction, Expenses from Transactions with Related Party | 251 | 250 | 136
Tower's project consulting fees |  |  |
Related Party Transaction, Expenses from Transactions with Related Party | 335 | 0 | 0
Dividends Paid On Company Stock Held By Tower [Member] |  |  |
Related Party Transaction, Expenses from Transactions with Related Party | $ 229 | $ 210 | $ 181

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- Definition Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 + Details
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- Details
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