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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