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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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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

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Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions.

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-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

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