EQUITY USSI Stock Option Plan (Details) (USD $) In Thousands, except Share data, unless otherwise specified	0 Months Ended				3 Months Ended	12 Months Ended
	Feb. 27, 2013	Nov. 01, 2012	Jan. 17, 2012	Oct. 05, 2011	Sep. 30, 2012	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
USSI options granted						50,000	637,375
USSI options exercise price per share						$ 1.72	$ 1.72
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	1 year		1 year	90 days
Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions					93.60%
Fully diluted ownership		85.10%
USSI Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
USSI options granted						50,000	637,375
Share based compensation USSI subsidiary - in R&D expense						$ 41	$ 80
Share based compensation USSI subsidiary - in General and Administrative Expense						92	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						95.70%
Fully diluted ownership						88.40%
Total share based compensation USSI subsidiary						$ 133	$ 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