CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Common Stock, Shares Authorized	60,000,000	60,000,000
Accounts receivable - customers, allowance for doubtful accounts	$ 751	$ 806
Other accounts receivable, allowance for doubtful accounts	$ 59	$ 235
Common Stock, Shares, Outstanding	36,733,506	36,680,794
GOLDEN STATE WATER COMPANY
Common Stock, Shares Authorized	1,000	1,000
Accounts receivable - customers, allowance for doubtful accounts	$ 751	$ 806
Other accounts receivable, allowance for doubtful accounts	$ 59	$ 59
Common Stock, Shares, Outstanding	146	146