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Discontinued Operations (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2012 | Dec. 31, 2012 item
Discontinued Operations |  |
Number of properties sold |  | 5
Discontinued Operations |  |
Rental income | $ 550 |
Depreciation and amortization | 110 |
Real estate expenses | 60 |
Interest expense | 116 |
Total expenses | 286 |
Income from operations | 264 |
Income from discontinued operations | $ 264 |

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