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Other Assets (Narrative) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2017 | Mar. 31, 2016 | Dec. 31, 2016 | Dec. 31, 2015
AMT carryover | $ 606 |  | $ 869 |
Deferred tax assets, valuation allowance, current | 0 |  | 0 |
Income (loss) from continuing operations before equity method investments, income taxes, extraordinary items, noncontrolling interest, total | 4,662 | $ 3,995 | $ 15,900 | $ 11,500
State and Local Jurisdiction [Member] |  |  |  |
Operating loss carryforwards | $ 23,500 |  |  |
Minimum [Member] | State and Local Jurisdiction [Member] |  |  |  |
Operating loss carryforwards, expiration date | Dec. 31, 2026 |  |  |
Maximum [Member] | State and Local Jurisdiction [Member] |  |  |  |
Operating loss carryforwards, expiration date | Dec. 31, 2034 |  |  |

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