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EQUITY USSI Stock Option Plan (Details) (USD $) In Thousands, except Share data, unless otherwise specified | 0 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Nov. 01, 2012 | Jan. 17, 2012 | Oct. 05, 2011 | Jan. 02, 2010 | Sep. 30, 2012 | Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
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%
USSI Stock Option Plan [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
USSI options granted |  |  |  |  |  | 637,375
Share based compensation USSI subsidiary - in R&D expense |  |  |  |  |  | $ 80
Share based compensation USSI subsidiary - in General and Administrative Expense |  |  |  |  |  | 243
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
Maximum [Member] | USSI Stock Option Plan [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period |  |  |  |  |  | 4 years
Minimum [Member] | USSI Stock Option Plan [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period |  |  |  |  |  | 3 years

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- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 5 -Section H + Details
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