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Equity (Details Textual) (USD $)
In Thousands, except Per Share data, unless otherwise specified
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Sep. 30, 2012
Sep. 30, 2011
Dec. 31, 2010
Dec. 31, 2011
Share-based Arrangements with Employees and Nonemployees [Abstract]            
Option grants estimated average forfeiture rate     9.60% 8.84%    
Stock Options, granted 2,000 24,496 2,000 24,496    
Stock Options, exercised 184   184      
Proceeds from exercise of stock options     $ 12 $ 0    
Restricted stock issued 46   46      
Restricted stock award, value 2   2      
Restricted stock, granted 496   496      
Total unrecognized compensation expense related to non-vested share-based compensation arrangements granted under the plans 252   252      
Unrecognized compensation expense amortization period     2 years 7 months      
Factor used to calculate the number of restricted shares granted to employees in exchange for reductions in their respective salaries $ 0.06   $ 0.06      
Percentage of shares vested in period       50.00% 50.00%  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Number of options outstanding under the Stock Compensation Plan 46,080   46,080     51,353
Stock-based compensation expense 109 207 376 613    
Restricted Stock [Member]
           
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Stock-based compensation expense     $ 45      
2009 Stock Compensation Plan [Member]
           
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Number of shares reserved under the Stock Compensation Plan 7,000   7,000      
Number of options outstanding under the Stock Compensation Plan 962   962      
2011 Stock Compensation Plan [Member]
           
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Number of shares reserved under the Stock Compensation Plan 50,000   50,000      
Number of options outstanding under the Stock Compensation Plan 43,963   43,963      
1999 Stock Compensation Plan [Member]
           
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Number of options outstanding under the Stock Compensation Plan 1,155   1,155