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EQUITY General (Details) (USD $) In Thousands, except Share data, unless otherwise specified | 0 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Nov. 01, 2012 | Jan. 17, 2012 | Oct. 05, 2011 | Jan. 02, 2010 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2011 | Sep. 30, 2012 | Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Common Stock, Shares, Outstanding |  |  |  |  | 18,068,606 |  |  |  |  |  | 18,068,606 |  |
Common Stock, Dividends, Per Share, Declared |  |  |  |  |  |  |  |  |  |  | $ 0.140 | $ 0.085 | $ 0.000
Stock Issued During Period, Shares, Dividend Reinvestment Plan |  |  |  |  | 14,305 | 8,429 | 0 | 0 | 0 |  | 22,734 | 0 |
Expiring DSIT warrants |  |  |  |  |  |  |  |  |  |  | 10.00% |  |
USSI options granted |  |  |  |  |  |  |  |  |  |  | 637,375 |  |
USSI options exercise price per share |  |  |  |  |  |  |  |  |  |  | $ 1.72 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period |  | 1 year | 90 days | 1 year |  |  |  |  |  |  |  |  |
Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions |  |  |  |  |  | 93.60% |  |  |  |  |  |  |
fully diluted ownership | 85.10% |  |  |  |  |  |  |  |  |  | 71.40% |  |
Common Stock, Par or Stated Value Per Share |  |  |  |  | $ 0.01 |  |  |  | $ 0.01 |  | $ 0.01 | $ 0.01 |
Conversion of Stock, Shares Issued |  |  |  |  |  |  |  |  |  | 36,502 |  |  |
Warrants forfeited in cashless exercise |  |  |  |  |  |  |  |  |  | 15,248 |  |  |
Conversion of Stock, Shares Converted |  |  |  |  |  |  |  |  |  | 51,750 |  |  |
Weighted average exercise price - cashless exercise |  |  |  |  |  |  |  |  |  | $ 3.68 |  |  |
USSI Stock Option Plan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized |  |  |  |  | 1,180,000 |  |  |  |  |  | 1,180,000 |  |
USSI options granted |  |  |  |  |  |  |  |  |  |  | 637,375 |  |
USSI options exercise price per share |  |  |  |  |  |  |  |  |  |  | $ 1.72 |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable Period |  |  |  |  |  |  |  |  |  |  | 7 years |  |
Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions |  |  |  |  |  |  |  |  |  |  | 94.40% |  |
fully diluted ownership |  |  |  |  |  |  |  |  |  |  | 85.10% |  |
Total share based compensation USSI subsidiary |  |  |  |  |  |  |  |  |  |  | $ 323 |  |
Share based compensation USSI subsidiary - in General and Administrative Expense |  |  |  |  |  |  |  |  |  |  | $ 243 |  |
USSI Stock Option Plan [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period |  |  |  |  |  |  |  |  |  |  | 3 years |  |

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