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NON-CONTROLLING INTERESTS (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2011 | Sep. 30, 2011 | Jun. 30, 2011 | Mar. 31, 2011 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
NON-CONTROLLING INTERESTS [Abstract] |  |  |  |  |  |  |  |  |  |  |
Net (income) attributable to NCI in DSIT |  |  |  |  |  |  |  |  | $ (84) | $ (22) | $ (181)
Net loss attributable to NCI in USSI |  |  |  |  |  |  |  |  | 1,108 | 571 | 776
Net Income (Loss) Attributable to Noncontrolling Interest | $ 287 | $ 276 | $ 205 | $ 256 | $ 65 | $ 181 | $ 167 | $ 136 | $ 1,024 | $ 549 | $ 595

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