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Fair Value Measurements (Schedule Of Asset Measured At A Fair Value On Non-recurring Basis) (Details) | Sep. 30, 2017 USD ($)
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Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Real estate held for sale | $ 1,815,000
Nonrecurring Basis [Member] |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Real estate held for sale | 1,815,000
Nonrecurring Basis [Member] | Level 3 [Member] |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Real estate held for sale | $ 1,815,000

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