v2.4.0.6
Stock-Based Compensation (Details Textual) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2012
Jun. 30, 2011
Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Shares outstanding under equity incentive plans 643,000     643,000   633,000
Expense related to options granted under equity incentive plans $ 27,000 $ 12,000   $ 57,000 $ 25,000  
Stock options granted under equity incentive plans       10,000 0  
Fair value assumption, risk-free interest rate       0.91%    
Fair value assumption, expected dividend yield       0.00%    
Fair value assumption, expected term (years)       4 years    
Fair value assumption, expected volatility rate       109.00%    
Unrecognized compensation expense related to non-vested stock options 120,000     120,000    
Recognition of unrecognized compensation expense, weighted-average period (in years)       1 year 1 month 17 days    
Equity ownership percentage to benefit China employees     38.00%      
Committed employee reserve, percentage to attract future employees as needed     5.00%      
Price of warrant     1.00      
Vesting period of warrant     vesting to occur one-third upon the first anniversary of the warrant and the remaining two-thirds to vest on a monthly basis over the succeeding 24 months      
Investment warrants expiration period (years)     6 years      
2006 Equity Incentive Plan [Member]
           
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Shares outstanding under equity incentive plans 631,000     631,000    
Shares available for grant under equity incentive plans 717,000     717,000    
2003 Stock Option Plan [Member]
           
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Shares outstanding under equity incentive plans 12,000     12,000    
Shares available for grant under equity incentive plans 0     0    
Hong Kong Subsidiary [Member]
           
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Value funded to affiliates     1,000,000      
Agreed additional funding to affiliates     1,000,000      
Estimated fair value of warrants 365,000     365,000    
Warrant performance period (years)       3 years    
Stock expenses on equity-based payments related to warrants $ 30,000 $ 30,000   $ 60,000 $ 60,000