XML 26 R49.htm IDEA: XBRL DOCUMENT v2.4.0.8
10. Stock Based Compensation (Details 1) (USD $)
 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Stock Based Compensation Details 1    
Dividend-yield 0.00% 0.00%
Risk-free interest rate 0.16- 0.63 0.23-0.57
Expected volatility 64.92-74.18 58.88-81.24
Expected life (years), min 1 year 3 months 6 months
Expected life (years), max 3 years 4 years
Weighted average fair value per share of common stock, min $ 0.32 $ 0.61
Weighted average fair value per share of common stock, max $ 0.40