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CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - USD ($) $ in Thousands | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | ---
ASSETS |  |
Utility Plant, accumulated depreciation | $ 128,920 | $ 126,114
Current assets |  |
Accounts receivable, allowance for doubtful accounts | 222 | 232
Other assets |  |
Non-utility Property, accumulated depreciation | $ 752 | $ 734

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