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Other Assets (Narrative) (Details) |  |  | 6 Months Ended |
--- | --- | --- | --- | ---
Jan. 31, 2012 USD ($) item | Jan. 31, 2012 USD ($) | Dec. 31, 2011 USD ($) item | Dec. 31, 2011 USD ($) | Jun. 30, 2015 USD ($) | Dec. 31, 2014 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Deferred financing costs |  |  |  |  | $ 300,000 | $ 300,000
Note receivable |  |  |  |  | $ 100,000 | $ 200,000
Promissory Notes [Member] |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |
Principal amount | $ 300,000 | $ 300,000 | $ 300,000 | $ 300,000 |  |
Number of promissory notes | item | 1 |  | 1 |  |  |
Accrued interest rate (in percent) |  | 4.50% |  | 4.50% |  |
Notes receivables, maturity date, description |  |  |  |  | the four year anniversary of the issuance date of the promissory notes, or (ii) an event of default |
Notes receivables, maturity date | Jan. 31, 2016 |  | Dec. 31, 2015 |  |  |

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