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Earnings per Share/Capital Stock: (Details 2) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2018 | Mar. 31, 2017
Additional disclosure |  |
Options outstanding (in shares) | 47,792 | 120,138
Anti-dilutive stock options not included in the computation of diluted EPS (in shares) | 0 | 0
Common Shares issued under DRP and the 2000 and 2008 Employee Plans | 52,622 | 44,832
Value of Common Shares issued under DRP and the 2000 and 2008 Employee Plans | $ 340 | $ 40
Weighted Average Dividends Common Stock | 9,362 | 8,854
Dividends paid | $ 9,362 | $ 8,854
Dividends Declared Per Common Share (in dollars per share) | $ 0.255 | $ 0.242
Restricted Stock Units |  |
Additional disclosure |  |
Restricted stock units outstanding (in shares) | 193,740 | 194,031
Golden State Water Company [Member] |  |
Additional disclosure |  |
Dividends paid | $ 9,380 | $ 0

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