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Commitments and Contingent Liabilities (Schedule of Purchased Water Costs) (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013
Purchased Water |  |  |  |
Treated | $ 764 | $ 780 | $ 2,344 | $ 2,303
Untreated | 642 | 618 | 1,763 | 1,739
Total Costs | $ 1,406 | $ 1,398 | $ 4,107 | $ 4,042

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- Definition Cost of water purchased, may include any water related assessment. If water is bought on a unit volume basis, would also be considered as commodity costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.2) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
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