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OTHER INVESTMENTS - Summary of other investments (Details) (USD $)
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Dec. 31, 2013
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Dec. 31, 2012
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|---|---|---|
| Schedule of Investments [Line Items] | ||
| Investment Focus | $ 3,304,000 | $ 3,604,000 |
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Venture capital funds - technology and communications
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| Schedule of Investments [Line Items] | ||
| Investment Focus | 473,000 | 514,000 |
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Venture capital funds - diversified businesses
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| Schedule of Investments [Line Items] | ||
| Investment Focus | 1,098,000 | 1,337,000 |
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Real estate and related
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| Schedule of Investments [Line Items] | ||
| Investment Focus | 1,409,000 | 1,453,000 |
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Other
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| Schedule of Investments [Line Items] | ||
| Investment Focus | $ 325,000 | $ 300,000 |