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CONDENSED CONSOLIDATED BALANCE SHEETS Parenthetical - USD ($)
$ in Thousands
Sep. 30, 2015
Dec. 31, 2014
ASSETS    
Utility plant, at original cost (less accumulated depreciation) $ 104,318 $ 97,932
Current assets    
Accounts receivable (allowance for doubtful accounts) 346 250
Other assets    
Non utility property (less accumulated depreciation) $ 515 $ 468