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Long-Term Debt Debt Maturity Schedule (Details) (USD $) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2013 | Dec. 31, 2012
Debt Instrument [Line Items] |  |
Long-term debt | $ 335,551,000 | $ 340,990,000
Mortgages [Member] |  |
Debt Instrument [Line Items] |  |
Loan amortization period | 25 years |
Number of monthly principal and interest payments | 120 |
Fiscal Year Amortization Schedule [Abstract] |  |
Total payment, 2013 | 1,229,000 |
Total payment, 2014 | 1,229,000 |
Total payment, 2015 | 4,034,000 |
Total payment, 2016 | 11,470,000 |
Interest, 2013 | 877,000 |
Interest, 2014 | 856,000 |
Interest, 2015 | 762,000 |
Interest, 2016 | 110,000 |
Principal, 2013 | 352,000 |
Principal, 2014 | 373,000 |
Principal, 2015 | 3,272,000 |
Principal, 2016 | 11,360,000 |
Mortgages [Member] | Minimum [Member] |  |
Debt Instrument [Line Items] |  |
Stated interest rates | 5.61% |
Mortgages [Member] | Maximum [Member] |  |
Debt Instrument [Line Items] |  |
Stated interest rates | 6.09% |
Mortgages [Member] | 444 West Santa Clara Street, L.P. [Member] |  |
Debt Instrument [Line Items] |  |
Loan amortization period | 20 years |
Long-term debt | 3,053,000 | 3,153,000
Stated interest rates | 5.68% |
Fiscal Year Amortization Schedule [Abstract] |  |
Total payment, 2013 | 276,000 |
Total payment, 2014 | 276,000 |
Total payment, 2015 | 276,000 |
Total payment, 2016 | 276,000 |
Total payment, 2017 | 276,000 |
Total payment, thereafter | 2,761,000 |
Interest, 2013 | 170,000 |
Interest, 2014 | 164,000 |
Interest, 2015 | 157,000 |
Interest, 2016 | 150,000 |
Interest, 2017 | 143,000 |
Interest, thereafter | 304,000 |
Principal, 2013 | 106,000 |
Principal, 2014 | 112,000 |
Principal, 2015 | 119,000 |
Principal, 2016 | 126,000 |
Principal, 2017 | 133,000 |
Principal, thereafter | 2,457,000 |
444 West Santa Clara Street, L.P. [Member] |  |
Debt Instrument [Line Items] |  |
Limited partership interest percentage | 70.00% |
San Jose Water Company [Member] | Standby Letters of Credit [Member] |  |
Debt Instrument [Line Items] |  |
Standby letters of credit | 3,000,000 |
Fiscal Year Amortization Schedule [Abstract] |  |
Line of Credit Facility, Renewal Term | 1 year |
San Jose Water Company [Member] | Bonds [Member] | California Pollution Control Financing Authority Revenue Bonds [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt | 50,000,000 | 50,000,000
Stated interest rates | 5.10% |
San Jose Water Company [Member] | SDWSRF loans [Member] |  |
Debt Instrument [Line Items] |  |
Long-term debt | 2,141,000 | 2,281,000
Fiscal Year Amortization Schedule [Abstract] |  |
Total payment, 2013 | 133,000 |
Total payment, 2014 | 196,000 |
Total payment, 2015 | 195,000 |
Total payment, 2016 | 196,000 |
Total payment, 2017 | 195,000 |
Total payment, thereafter | 1,592,000 |
Interest, 2013 | 37,000 |
Interest, 2014 | 49,000 |
Interest, 2015 | 45,000 |
Interest, 2016 | 42,000 |
Interest, 2017 | 38,000 |
Interest, thereafter | 155,000 |
Principal, 2013 | 96,000 |
Principal, 2014 | 147,000 |
Principal, 2015 | 150,000 |
Principal, 2016 | 154,000 |
Principal, 2017 | 157,000 |
Principal, thereafter | $ 1,437,000 |
San Jose Water Company [Member] | SDWSRF loans [Member] | Minimum [Member] |  |
Debt Instrument [Line Items] |  |
Stated interest rates | 2.39% |
San Jose Water Company [Member] | SDWSRF loans [Member] | Maximum [Member] |  |
Debt Instrument [Line Items] |  |
Stated interest rates | 2.60% |

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