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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | ---
ASSETS |  |
Less - accumulated depreciation | $ 109,684 | $ 104,750
Current assets |  |
Less allowance for doubtful accounts | 263 | 277
Other assets |  |
Non utility property (accumulated depreciation) | $ 611 | $ 535

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