v2.4.0.8
Stock-Based Compensation (Details Textual) (USD $)
 3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2010
Jun. 30, 2013
Plans
Jun. 30, 2012
Dec. 31, 2012
Stock-Based Compensation (Textual) [Abstract]            
Shares outstanding under equity incentive plans 643,000     643,000   643,000
Stock-Based Compensation (Additional Textual) [Abstract]            
Number of equity incentive plan       2    
Expense related to options granted under equity incentive plan $ 25,000 $ 27,000   $ 52,000 $ 57,000  
Stock options granted under equity incentive plans          10,000  
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 15,000     15,000    
Recognition of unrecognized compensation expense, weighted-average period (in years)       2 months 16 days    
Equity ownership percentage to benefit China employees     38.00%      
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      
Warrant Exercise Date       May 05, 2013    
2006 Equity Incentive Plan [Member]
            
Stock-Based Compensation (Textual) [Abstract]            
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]
            
Stock-Based Compensation (Textual) [Abstract]            
Shares outstanding under equity incentive plans 12,000     12,000    
Shares available for grant under equity incentive plans 0     0    
Hong Kong Subsidiary [Member]
            
Stock-Based Compensation (Textual) [Abstract]            
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 $ 10,000 $ 30,000   $ 40,000 $ 60,000